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

NCERT Solutions For Class 7 Maths Ex 15.4 PDF Free Download

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 have solved the problems step by step with neat explanations.

Download the PDF of NCERT Solutions For Class 7 Maths Chapter 15 Visualising Solid Shapes – Exercise 15.4

 

ncert sol class 7 math ch 15 ex 4
ncert sol class 7 math ch 15 ex 4
ncert sol class 7 math ch 15 ex 4
ncert sol class 7 math ch 15 ex 4
ncert sol class 7 math ch 15 ex 4

 

Access other exercises of NCERT Solutions For Class 7 Chapter 15 – Visualising Solid Shapes

Exercise 15.1 Solutions

Exercise 15.2 Solutions

Exercise 15.3 Solutions

Access answers to Maths NCERT Solutions for Class 7 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)

NCERT Solutions for Class 7 Maths Chapter 15 Visualising Solid Shapes Image 61

Solution:-

NCERT Solutions for Class 7 Maths Chapter 15 Visualising Solid Shapes Image 62

The shape of the shadow obtained from a ball is circle.

(ii)

NCERT Solutions for Class 7 Maths Chapter 15 Visualising Solid Shapes Image 63

Solution:-

NCERT Solutions for Class 7 Maths Chapter 15 Visualising Solid Shapes Image 64

The shape of the shadow obtained from a cylindrical pipe is rectangle.

(iii)

NCERT Solutions for Class 7 Maths Chapter 15 Visualising Solid Shapes Image 65

Solution:-

NCERT Solutions for Class 7 Maths Chapter 15 Visualising Solid Shapes Image 66

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)

NCERT Solutions for Class 7 Maths Chapter 15 Visualising Solid Shapes Image 67

Solution:-

Cricket ball, water bottle cap, Disc

(ii)

NCERT Solutions for Class 7 Maths Chapter 15 Visualising Solid Shapes Image 68

Solution:-

Die, chalk box etc.

(iii)

NCERT Solutions for Class 7 Maths Chapter 15 Visualising Solid Shapes Image 69

Solution:-

Birthday cap etc.

(iv)

NCERT Solutions for Class 7 Maths Chapter 15 Visualising Solid Shapes Image 70

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.


Leave a Comment

Your email address will not be published. Required fields are marked *