Question

4. In the Fig., a semicircle and a square are shown.
If side of the square is equal to the radius of the
semicircle, then perimeter of the semicircle is
(a) 30.04 cm
(6) 38.62 cm
(c) 31.11 cm
(d) None of these

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Answer 1

Answer:

Correct option is

D

14 cm

Perimeter of semicircle=36cm

πr+d=36

⇒πr+2r=36

⇒r(

7

22

+2)=36

⇒

7

36

×r=36

⇒r=7

∴ Diameter 2r=2×7=14cm

Step-by-step explanation:

hope the answer will help you