Math, asked by ananthu2468, 1 year ago

find the perimeter of a circle whose area is 9 Pi centimetre square​

Answers

Answered by hcsatbir
0

Answer:

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Answered by parul682
0

Answer:

area of circle = pi r square

radius square =area/pi

radius square=9 ×pi/pi

radius =square root of 9=3cm

now perimeter=2×pi×r

perimeter=2×22/7×3=132/7=18.71.

perimeter =132/7or 18.71 cm

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