# Ex.15.4 Q1 Visualising Solid Shapes - NCERT Maths Class 7

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## Question

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).

Video Solution

Visualizing Solid Shapes

Ex 15.4 | Question 1

## Text Solution

**What is known?**

Some solids

**What is unknown?**

Shape of the shadow obtain in each case.

**Reasoning:**

A spherical object gives a circular shape shadow.

A cylindrical object gives a shadow of a line.

A cuboidal object gives a rectangular shape shadow.

**Steps:**

(i) A ball will give the shadow of a circle when tourch is above the ball.

(ii) A cylindrical pipe will give the shadow of a line.

(iii) A book will give image of a rectangle.