Exercise 13.4 (Revised) - Chapter 15 - Visualising Solid Shapes - Ncert Solutions class 7 - Maths

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NCERT Solutions for Class 7 Maths Chapter 13 - Visualising Solid Shapes

Ex 13.4 Question 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).

Answer:

Ex 13.4 Question 2.

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

Answer:

Ex 13.4 Question 3.

Examine if the following are true statements:
(i) The cube can cast a shadow in the shape of a rectangle.
(ii) The cube can cast a shadow in the shape of a hexagon.

Answers :

(i) True (ii) False