Question

if the area of the circle is 1386 sq. cm. find the circumference of the circle

Answer 1

area of circle= pi rsqure
1386 = 22/7 ×rsquare
4356 = rsquare
r=66 cn

circum. = 2pi r
2×22/7×66
2904/7
414.85 cm

Answer 2

Answer:

Heya !!

Here's your answer.. ⬇⬇

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Area of circle = 1386 cm²

πr² = 1386

22/7 × r² = 1386

1/7 × r² = 1386/22

1/7 × r² = 63

r² = 63 × 7

r² = 441

r = √441

r = 21 cm

Circumference of circle = 2πr

= 2 × 22/7 × 21

= 132 cm

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Hope it helps...

Thanks :)