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RD Sharma Class 7 Solutions Chapter 19 - Visualising Solid Shapes (Ex 19.1) Exercise 19.1 - Free PDF

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Last updated date: 24th Feb 2024
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Visualising Solid Shapes By Vedantu

Free PDF download of RD Sharma Class 7 Solutions Chapter 19 - Visualising Solid Shapes Exercise 19.1 solved by Expert Mathematics Teachers on Vedantu.com. All Chapter 19 - Visualising Solid Shapes Ex 19.1 Questions with Solutions for RD Sharma Class 7 Maths to help you to revise the complete Syllabus and Score More marks. Register for online coaching for IIT JEE (Mains & Advanced) and other Engineering entrance exams.

About the Chapter

Visualising Solid Shapes Chapter 19 is available for download here for RD Sharma Class 7 Solutions. To help students increase their subject knowledge and proficiency, these RD Sharma Solutions are available for free. This Chapter introduces students to the concepts of shapes and 3D shapes by explaining what a shape is and how it can be defined as an outline, boundary, or surface of a solid, solid, or hollow object. The geometric shape, on the other hand, can simply be viewed as the geometric information left after measuring, positioning, reflecting, and orienting the geometric object is removed. 3D shapes, however, can simply be described as those shapes that do not lie on a flat surface. Unlike a polyhedron, a solid is composed entirely of polygon faces. Convex polyhedrons are the two types of polyhedra; Regular polyhedra are the other. The examples in this Chapter will provide students with plenty of practice and learning opportunities. For free, you can access our RD Sharma Class 7 Solutions to get help with various questions that may arise regarding the subject. Students can gain the most exposure to the different problems with the help of exercises, solved examples, and problem questions.


There are links at the end of the article to download RD Sharma Solutions for Class 7 Maths Chapter 19 Visualising Solid Shapes in PDF format. There are many upcoming topics covered in Class 7. To help our students achieve excellent marks in Mathematics, our experts have developed RD Sharma Solutions. The following Chapter discusses some significant topics.


1. One-dimensional figures

2. Two-dimensional figures

3. Three-dimensional figure

4. Faces, Edges, and Vertices of

  • Cube

  • Cuboid

  • Pyramid

  • Cylinder

  • Cone

  • Sphere

5. Nets for building 3D – Shapes

6. Euler’s formula


Solutions to Class 7 problems by RD Sharma assist students to score well in exams. Class 7 builds on the foundation that students will build in subsequent Classes by providing extensive knowledge of the subject. Student learning is easy thanks to step-by-step solutions.


​​Vedantu also offers students Class 7 Maths Revision Notes, Formulas, and Important Questions as well as the complete Class 7 Maths Syllabus, Sample Papers, and Previous Year Question Papers to prepare for their exams and achieve better scores.

FAQs on RD Sharma Class 7 Solutions Chapter 19 - Visualising Solid Shapes (Ex 19.1) Exercise 19.1 - Free PDF

1. What is called Visualising solid shapes?

The number of faces, edges, and vertices in three-dimensional figures varies. Faces are flat surfaces in the figure, while the shapes are two-dimensional. It is called the edge of the shape when the faces of three-dimensional shapes meet at that point. A vertex, or point where the edges of the figure meet, is a corner or a point where the edges of the figure meet if there is one such point.

2. What do you mean by Nets for 3-D shapes?

Three-Dimensional Nets: Shapes that can be folded to form a solid or a three-dimensional shape are called geometry nets. A net can be defined as a pattern produced by laying out each face of a three-dimensional shape. Various nets are possible for solids. Essentially, a net is a 3D figure that has been unfolded.

3. The Euler Formula

In each polyhedron, there are specific numbers of faces, edges, and vertices (depending on its type). Regardless of the type of polyhedron,


The number of vertices, the number of faces, and the number of edges are determined by (V = vertex, F = face, and E = edge).

4. The Pyramid and the Prism

The polyhedron family has two prominent members: prisms and pyramids. A prism is a polyhedron with congruent polygons defining the base and top and parallelograms defining the sides. 


A pyramid, on the other hand, is made up of triangles with a common vertex at the base, with the lateral faces being polygons. A pyramid model is obtained by connecting the corners of all polygons to a point that isn't in the plane of the polygon.


The name of the pyramid comes from its base. Hexagonal prisms have hexagonal bases, while triangular pyramids have triangle bases.

5. Visualising Solid Shapes not only helps in geometry but also in day to day activities

When studying geography, you are often asked to locate a particular place on a map, such as a state, a river, a mountain, etc. It is not unusual for History courses to ask you to find a specific place where some event occurred long ago. Your journey has included tracing the routes of rivers, roads, railways, and traders. In contrast to a map, a picture attempts to depict reality as seen with all its details, while a map simply shows an object's location. As well, different people can describe the same house quite differently depending on where they stand when looking at the picture. However, maps may not be as subjective as pictures. Any observer can see where a house is, regardless of where they are standing. For example, drawing a picture relies heavily on perspective, but mapping does not.