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

Q1. 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.

(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

Q2. Here are the shadows of some 3-D objects, when seen under the lamp of an overhead projector . Identify the solid that the

match each shadow .

(i)

Solution:-

Cricket balls , water bottle cap , Disc.

(ii)

Solution:-

Die , chalk box etc.

(iii)

Solution:-

Birthday cap etc.

(iv)

Solution:-

Books , Keyboard , Mobile etc.

Q3. Examine if the following are true statements:

• The cube can cast a shadow in the shape of a rectangle.

Solution:-

The above statements is true.

• The cube can cast a shadow in the shape of a hexagon.

Solution:-

The above statements is false.

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NCERT Solutions for Class 7 Maths Exercise – 15.4 Chapter – 15 Visualising Solid Shapes Q1. A bulb is kept burning…