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JEE Main - Three-Dimensional Geometry Important Questions (Free PDF Download)

Last updated date: 03rd Dec 2023
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MVSAT Dec 2023

Study Smartly About - Three-Dimensional Geometry Important Questions For JEE Main With Solutions PDF

Vedantu presents a valuable asset for JEE Main 2024 aspirants with its Strategically selected Three-Dimensional Geometry Important Questions for JEE Main by Vedantu's Master Teachers. They are consistently updated on current trends to ensure the questions perfectly align with the JEE Main exam syllabus. Three-Dimensional Geometry important questions JEE Main PDF encompass multiple-choice questions (MCQs) and Integer Questions, allowing students to enhance their proficiency at various levels. With comprehensive solutions and explanations, the JEE Main Important Questions PDF aids students in understanding the correct approaches and techniques. These Important Questions PDF includes the Previous Year Questions from JEE Main Exams, providing students with all the major questions to solve and study. Most importantly, all these resources are freely available in PDF format for easy, direct download from our website.


JEE Main Important Questions


Text, Images, Videos and PDF


JEE Main

Chapter Name:

Three-Dimensional Geometry

Academic Session:



English Medium



Available Material:

Chapter-wise Important Questions with PDF

The Important Questions of Three-Dimensional Geometry for JEE Main chapter covers the study of spatial relationships and geometric properties of points, lines, planes, and shapes in three-dimensional space, providing a mathematical framework to analyse and solve problems in three dimensions. This is one of the important chapters for JEE Main Exams, and you can expect a minimum of 2 to 3 questions from this chapter. Have a look at the number of questions asked from the Important questions of Three-Dimensional Geometry for JEE Main  chapter in the past five years of JEE Main exam.

Year Wise Weightage of Questions: JEE Main Three-Dimensional Geometry

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Average No. Of Questions Asked

Marks per Question

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Take the chance to elevate your preparation with our Three-Dimensional Geometry Important Questions. It covers the whole JEE Main Maths syllabus and you can download for FREE.

Competitive Exams after 12th Science

Top Concepts To Study in Three-Dimensional Geometry for JEE Main 2024

Here you will look at the main topics you should go over in Three-Dimensional Geometry important questions for JEE Main. These crucial topics can truly improve your preparation. Good at them will give you a big advantage in the upcoming test. So, let's discuss the essential topics you need to consider for success in JEE Main 2024.

  • Coordinate Systems in 3D

  • Direction Cosines and Ratios

  • Equations of Lines and Planes

  • Angle between Two Lines and between a Line and a Plane

  • Distance from a Point to a Line and a Plane

  • Intersection of Lines and Planes

  • Angle between Two Planes

  • Projection and Reflection

  • Distance between Parallel Lines

  • Vector Representation

  • Applications in Physics and Engineering

  • Tetrahedron and Vectors

Maths Important Questions: Chapter-wise links 2024

Download JEE Main Maths Chapter-wise Important Questions - Free PDF from the table below:

How Three-Dimensional Geometry Can Shape Your JEE Main 2024 Journey?

The Important Questions of Three-Dimensional Geometry for JEE Main is not just a theoretical concept; it is the key to unlocking your potential in JEE Main. These topics hold substantial weightage in the exam, and understanding them thoroughly can significantly boost your scores, especially in JEE Main Important Questions. Here, we will delve into the importance of mastering this chapter and how it can empower you to excel in JEE Main.

Three-Dimensional Geometry important questions JEE Main is more than an academic endeavour; it is an exploration of spatial dimensions that transcends the borders of equations. It fosters logical thinking, analytical finesse, and a holistic understanding of geometric interplay.

As you journey through this chapter, you unlock the door to an intricate world where mathematics and space converge, setting you on a path toward scientific excellence that extends beyond the realms of JEE Main 2024.

Here are some points that justify it:

Visualising the Unseen:

Three-Dimensional Geometry equips you to visualise points, lines, planes, and shapes in 3D space, enriching your geometric intuition.

Engineering and Physics Nexus:

This chapter bridges mathematics with physics and engineering, enhancing your ability to comprehend spatial arrangements in these fields.

Spatial Insight:

Mastering the equations of lines and planes endows you with an intricate understanding of how objects intersect and behave in space.

Problem-solving Prowess:

Navigating the intricacies of distances, angles, and intersections sharpens your problem-solving acumen, honing your ability to dissect complex scenarios.

Real-world Applications:

The principles of Three-Dimensional Geometry have profound implications in fields such as computer graphics, architecture, and physics, underscoring its real-world relevance.

Multidimensional Visualisation:

Understanding projections, reflections, and vectors imparts a unique lens to analyse multidimensional scenarios, setting the stage for advanced studies.

Foundation for Vector Concepts:

This chapter lays a robust foundation for vector concepts, an indispensable tool in various scientific and engineering disciplines.

Enriching Analytical Skills:

Three-Dimensional Geometry fosters analytical thinking, enabling you to deconstruct problems, synthesise solutions, and grasp spatial relationships.

Higher-order Mathematical Thinking:

Engaging with this chapter challenges you to think beyond 2D scenarios, cultivating higher-order mathematical thinking.

Intersection of Sciences:

The chapter's principles transcend exams, acting as a bridge between mathematical abstraction and real-world applications.

Professional Relevance:

Proficiency in Three-Dimensional Geometry resonates in engineering, architecture, graphics, and disciplines demanding spatial insight.

Future Academic Endeavours:

Proficiency in this chapter forms a bedrock for advanced studies, preparing you for complex university-level concepts.

Formula-Memory Connection: Strengthening Knowledge with Three-Dimensional Geometry Important Questions

If you want to excel in your studies, you can employ a smart strategy by incorporating the Three-Dimensional Geometry chapter of JEE Main into your learning. Formulas serve as concise explanations of crucial concepts within this chapter. When you pair these formulas with solved questions specific to Three-Dimensional Geometry, you gain a comprehensive learning approach. Three-Dimensional Geometry important questions for JEE Main serve as the foundation for building a strong understanding, while formulas aid in grasping concepts and tackling problems effectively. This amalgamation simplifies challenging topics and enhances your memory retention. By following this method, you can elevate your comprehension and achieve better academic performance.

You can also download Vedantu's JEE Main Maths Formulas related to Three-Dimensional Geometry for FREE. When you combine these formulas with JEE Main Important Questions from the same chapter, you will observe significant improvements in your scores.

JEE Mains Important Questions Summary for Three-Dimensional Geometry

Coordinates of a Point in Space

  • A point in three-dimensional space is represented by three coordinates (x, y, z).

  • These coordinates specify the location of the point relative to a chosen origin.

Distance Between Two Points

  • The distance between two points in 3D space is found using the 3D version of the distance formula.

  • It involves the differences in coordinates and is calculated using the square root.

Section Formula

  • The section formula is used to find the coordinates of a point that divides a line segment in a given ratio.

  • It is useful for locating a point within a line segment.

Direction Ratios and Direction Cosines

  • Direction ratios describe how a line travels in each of the coordinate axes (x, y, z).

  • Direction cosines are the cosines of the angles that a line makes with the coordinate axes.

Angle Between Two Intersecting Lines

  • The angle between two intersecting lines is calculated using the direction cosines of each line.

  • This concept helps in understanding the relative orientations of lines in space.

Skew Lines and Shortest Distance

  • Skew lines are lines that are neither parallel nor intersecting.

  • The shortest distance between skew lines can be found using vector algebra and the projection of one line onto the other.

Equations of a Line and a Plane

  • A line in 3D space can be represented using different forms such as vector, parametric, and symmetric equations.

  • A plane in 3D space can be represented using different forms like the normal form and the Cartesian form.

Intersection of a Line and a Plane

  • The intersection of a line and a plane is found by solving the equations simultaneously.

  • This determines whether the line lies on the plane and, if not, where they intersect.

Coplanar Lines

  • Coplanar lines are lines that lie in the same plane.

  • Identifying coplanar lines is important in solving problems involving lines and planes in 3D geometry.

Explore Further: Supplementary Resources for JEE Main 2024 Three-Dimensional Geometry

Explore additional resources beyond JEE Main 2024 Three-Dimensional Geometry Important Questions. Students need to consider extra materials like practice papers, mock tests, PYQPs, etc., alongside important Three-Dimensional Geometry questions to gain a well-rounded preparation, refine their exam strategies, and build confidence for the JEE Main exam.

Looking to enhance your JEE Main 2024 Three-Dimensional Geometry preparation? Explore these Important materials:

Use these tools to improve comprehension and test-taking skills, boosting your JEE Main 2024 performance!

Access the Supplementary Resources for JEE Main 2024 here:

Prepare With Vedantu About Three-Dimensional Geometry Important Questions For JEE Main To Raise Your Performance

Three-dimensional geometry in JEE Main is a fascinating branch of mathematics that deals with the study of objects in three-dimensional space. Through our exploration, we've discovered the fundamental concepts of points, lines, and planes, as well as how to calculate distances, angles, and volumes in this space. Vedantu's Three-Dimensional Geometry important question PDFs have played a crucial role in simplifying this complex subject. They provide concise summaries, solved examples, and practice questions, making it easier for students to grasp these intricate concepts. With the help of these resources, students can enhance their understanding and excel in their studies.

FAQs on JEE Main - Three-Dimensional Geometry Important Questions (Free PDF Download)

1: What are the JEE Main 2024 Important Questions in Three-Dimensional Geometry?

The JEE Main 2024 Important Questions in Three-Dimensional Geometry cover various topics, including:

  • Coordinates in 3D Space: Questions related to Cartesian coordinates, distance formula, and coordinates of points.

  • Direction Ratios and Cosines: Problems involving direction ratios, direction cosines, and their properties.

  • Distance Between Points and Lines: Questions on finding the distance between two points, point and line, and two skew lines.

  • Equations of Lines and Planes: Problems related to finding equations of lines and planes in 3D space.

  • Angle Between Lines and Planes: Questions about finding the angle between lines and planes, as well as the angle between two planes.

  • Intersection of Lines and Planes: Problems involving the intersection of lines and planes, and the condition for coplanarity.

  • The Shortest Distance Between Two Skew Lines: Questions on finding the shortest distance between two skew lines.

  • Vector and Scalar Triple Products: Problems related to vector and scalar triple products, along with their applications.

2: How can I effectively prepare for Three-Dimensional Geometry important questions  For JEE Main 2024?

To prepare effectively, follow these steps:

  • Understand the Basics: Start by understanding the fundamental concepts and formulas related to Three-Dimensional Geometry.

  • Practice Regularly: Solve the JEE Main 2024 Important Questions and practice problems from previous years to gain proficiency.

  • Conceptual Clarity: Ensure a strong conceptual understanding of coordinate geometry and vector algebra.

  • Use Reference Material: Refer to textbooks and study materials from reliable sources like Vedantu to supplement your preparation.

  • Online Resources: Utilize online platforms, videos, and lectures for additional guidance.

  • Mock Tests: Take mock tests to simulate exam conditions and assess your progress.

  • Time Management: Manage your time efficiently during the exam by practicing time-bound questions.

  • Seek Help: Don't hesitate to seek help from teachers or peers if you encounter difficulties.

3: How important is it to understand Vector and Scalar Triple Products in Three-Dimensional Geometry Important Questions JEE Main?

Understanding vector and scalar triple products is crucial. These concepts are frequently tested in JEE Main and have applications in solving problems related to lines, planes, and angles. Mastery of these topics will help you tackle complex questions effectively.

4: How to solve questions related to the Intersection of Lines and Planes from JEE Main 2024 Important Questions for Three-Dimensional Geometry?

To find the equation of the line of intersection, you need to solve two planes simultaneously to find the line's direction vector. The direction vector will be orthogonal to the normal vectors of both planes. Once you find the direction vector, you can use a point of intersection to write the equation.

5: Are there any specific strategies to tackle questions related to finding the Shortest Distance Between Two Skew Lines in Three-Dimensional Geometry for JEE Main 2024?

To solve questions about finding the shortest distance between two skew lines:

  • Calculate the direction vectors of both lines.

  • Find a point on each line.

  • Use the formula for the shortest distance between two skew lines, which involves vector and scalar products.

  • Remember to thoroughly understand this concept and practice problems to apply it effectively.

6: How can I solve JEE Main 2024 Important Questions in Three-Dimensional Geometry effectively to improve my problem-solving skills?

To enhance your problem-solving skills:

  • Practice Regularly: Consistently solve JEE Main 2024 Important Questions and other relevant problems.

  • Variety of Questions: Ensure you cover a variety of question types, from basic to complex.

  • Conceptual Understanding: Focus on understanding the underlying concepts, not just memorizing formulas.

  • Step-by-Step Solutions: Analyze the solutions step by step to understand the logic and methods used.

  • Time Management: Solving problems under time constraints to improve your speed.

  • Self-Assessment: Evaluate your progress by taking mock tests and assessing your performance.

  • Seek Feedback: If possible, get feedback from teachers or peers on your problem-solving techniques.

7: How important are the concepts of Direction Ratios and Cosines in Three-Dimensional Geometry for JEE Main 2024?

Direction ratios and cosines are fundamental concepts in Three-Dimensional Geometry. They are essential for understanding the direction of lines and vectors in 3D space. Mastery of these concepts is crucial for solving various problems related to lines and planes, making them important for JEE Main 2024.

8: Where can I find more JEE Main 2024 Important Questions in Three-Dimensional Geometry, especially with solutions and explanations?

You can find JEE Main 2024 Important Questions, along with solutions and explanations, in various resources such as:

  • Vedantu's official website or study materials.

  • JEE Main preparation books by renowned authors.

  • Online forums and communities where students share practice questions.

  • Coaching institutes and online education platforms that offer JEE Main preparation courses.

  • Previous year's question papers and mock tests for JEE Main, which often include important questions.