Q10. Find the area of a circle whose circumference is 66m – InterviewSolution

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Q10. Find the area of a circle whose circumference is 66m

Answer»

LET the RADIUS of the circle be R cm.

then its circumference = ( 2 × 22/7 × r )cm

66 = 2 × 22/7 × r

r = 66 × 7/44 = 21/2

hence, area of circle = ( 22/7 )² cm²

= ( 22/7 × 22/7 × 21/2 ) cm²

= 346.5 cm²

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