 # NCERT Solutions for Class 7 Maths Exercise 15.4 Chapter 15 Visualising Solid Shapes

NCERT Solutions for Class 7 Maths Exercise 15.4 Chapter 15 Visualising Solid Shapes is an essential material as it offers a wide range of questions that test the students’ understanding of concepts. This exercise of NCERT Solutions for Class 7 Maths Chapter 15 contains the topic related to the other way is by shadow play. Our expert personnel has solved the problems step by step with neat explanations.

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Exercise 15.1 Solutions

Exercise 15.2 Solutions

Exercise 15.3 Solutions

### Access Answers to NCERT Class 7 Maths Chapter 15 – Visualising Solid Shapes Exercise 15.4

1. A bulb is kept burning just right above the following solids. Name the shape of the shadows obtained in each case. Attempt to give a rough sketch of the shadow. (You may try to experiment first and then answer these questions).

(i) Solution:- The shape of the shadow obtained from a ball is circle.

(ii) Solution:- The shape of the shadow obtained from a cylindrical pipe is rectangle.

(iii) Solution:- The shape of the shadow obtained from a book is rectangle.

2. Here are the shadows of some 3-D objects, when seen under the lamp of an overhead projector. Identify the solid(s) that match each shadow. (There may be multiple answers for these!)

(i) Solution:-

Cricket ball, water bottle cap, Disc

(ii) Solution:-

Die, chalk box etc.

(iii) Solution:-

Birthday cap etc.

(iv) Solution:-

Book, keyboard, Mobile etc.

3. Examine if the following are true statements:

(i) The cube can cast a shadow in the shape of a rectangle.

Solution:-

The above statement is true.

(ii) The cube can cast a shadow in the shape of a hexagon.

Solution:-

The above statement is false.