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Resolve Queries With RD Sharma Class 9 Solutions Chapter 8 - Lines and Angles Exercise 8.1 - Free PDF

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Last updated date: 17th Apr 2024
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Free PDF download of RD Sharma Class 9 Solutions Chapter 8 - Lines and Angles Exercise 8.1

Free PDF download of RD Sharma Class 9 Solutions Chapter 8 - Lines and Angles Exercise 8.1 solved by Expert Mathematics Teachers on Vedantu.com. All Chapter 8 - Lines and Angles Ex 8.1 Questions with Solutions for RD Sharma Class 9 Maths will help you to revise and complete the syllabus to score more marks.

RD Sharma Mathematics is a renowned reference book among Class 9 mathematics students. It provides numerous practice examples, ranging from simple to complex. Vedantu provides the Solutions for Class 9 RD Sharma to help students with their preparation and to clear their doubts.

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Competitive Exams after 12th Science

RD Sharma Class 9: Chapter 8, Lines and Angles

Lines and angle is a chapter that comes under the unit geometry. It provides a basic introduction to geometry. This chapter mainly focuses on the properties of angles.

In our daily lives, we see that lines and angles are present everywhere around us. 

Let's take a look at some examples: 

  • straight lines on the door, intersecting lines of the windows, the corners of the tables where two sides meet. All of these patterns around us are examples of lines and angles.

  • Constructors, engineers, and architects also use lines and angles to construct buildings, design machines, and do many creative things.

  • When we take a left while walking on a straight path it is also an example of lines and angles.

As we can see, lines and angles are a major part of our lives and all of our infrastructures are made with the help of lines and angles. Hence Lines and Angles is an important chapter.

In this exercise, students will learn to 

  • Write the complement to angle

  • Write the supplement to angle

  • Find the measure of angles using complement and supplement data

Make it easier for you to prepare this chapter by downloading Class 9 RD Sharma Chapter 8 Ex 8.1 solutions today. Learn how the experts of Vedantu have used the concepts of this chapter to solve the problems related to lines and angles. Build your concept perfectly and find confidence while solving these problems in the exams.

FAQs on Resolve Queries With RD Sharma Class 9 Solutions Chapter 8 - Lines and Angles Exercise 8.1 - Free PDF

1. What is an Angle? What are the different types of angles mentioned in RD Sharma Class 9 Solutions Chapter 8 - Lines and Angles (Ex 8.1) Exercise 8.1 - Free PDF?

An angle is created from the intersection of two lines.

Normally there are 6 types of angles :

  • Acute Angle: Acute angle is a type of angle that is less than 90 degrees.

  • Right Angle: Right angle is an angle that is exactly 90 degrees.

  • Obtuse Angle: Obtuse angle is an angle that is greater than 90 degrees but lesser than 180 degrees.

  • Straight Angle: Straight angle looks like a straight line; this angle is exactly 180 degrees.

  • Reflex Angle:  it is an angle that is greater than 180 but less than 360 degrees.

  • Complete angle/Full angle: An angle that is exactly 360 degrees is called complete/full angle.

2. What is a line? What are the different types of lines mentioned in RD Sharma Class 9 Solutions Chapter 8 - Lines and Angles (Ex 8.1) Exercise 8.1 - Free PDF?

A line is a plane continuous geometrical figure that only has length but no breadth.

Some different types of lines : 

  • Horizontal Line: it is a straight line that can be drawn left to right or vice versa.

  • Vertical Line: Vertical Line is a straight line that can be drawn from top to bottom or vice versa.

  • Parallel Lines: Parallel Lines are two or more lines that never intersect each other.

  • Diagonal Lines: These lines are straight lines that are drawn from top to bottom or vice versa but in a slant manner.

  • Perpendicular Lines: these lines are the lines that intersect each other at a 90-degree angle.

  • Curvy, Wavy, Zigzag Lines: These types of lines are irregular; these lines are not straight lines.

3. What is the best reference material for Mathematics Chapter 8 - Lines and Angles?

Students can refer to any textbook of their choice but the highly recommended textbook is NCERT and the highly recommended guide is RD Sharma, these two study materials are the bestselling study materials among Class 9 & 10 mathematics students.

Students can download NCERT and RD Sharma solutions from Vedantu's Portal.

Another highly recommended study material for class 9 mathematics is Sample Papers and Previous year question papers. You can also download free sample papers and previous year’s question papers from Vedantu.com. Solving more and more sample papers will make your base stronger and it will help you to understand the paper pattern.

4. Why should we study Chapter 9: Lines and Angles from RD Sharma?

Although the NCERT is a highly recommended study material, it does not cover all types of questions NCERT will provide quite simpler questions as compared to RD Sharma.

RD Sharma has a set of questions ranging from simple to complex. It has a variety of examples that prepare students for the long run. Hence Practising from RD Sharma is a better way of preparing for the Class 10 board examination and any other entrance examinations. 

5. How to prepare Class 9 Chapter 8: Lines and Angles using RD Sharma textbook?

Here is a list of steps to follow.

  • Take a rough book/paper and pen to solve the questions.

  • Go through the Chapter Lines and Angles given in your NCERT textbook line by line.

  • Try to understand the meaning of the basic terms given in the chapter. Note down the formulas given in the chapter.

  • Solve the questions provided in your NCERT textbook and then move to RD Sharma. Try solving simple questions first and then focus on more complex problems.

  • If you get stuck while solving any problem given in NCERT book or RD Sharma then Visit Vedantu to download free Solutions PDFs.

Using this way you can get a good grip on Chapter 8  Lines and Angles. It's the best way to practice a chapter for your examinations.