Question

26. In Fig. 15.91, ABCD is a square of side 2a. Find the ratio between
(i) the circumferences
(ii) the areas of the incircle and the circum-circle of the square.
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Answer 1

Answer:

square side=2a

circle radius=a

Step-by-step explanation:

1. square circumference=4*2a=8a.

circle circumference=2πa.

ratio=2πa/8a=π/4.

2. square area=2a*2a=4a^2.

circle area=π*a^2.

ratio=πa^2/4a^2=π/4.