Question

find the radius and circumference of a circle whose area is 154cm²​

Answer 1

Answer:

radius = 7 , circumference of circle =44

Explanation:

area of circle=πr^2

154cm^2 = 22/7*r^2

154*7/22 =r^2

7*7=r^2

49 =r^2

√7*7=r

radius =7cm.

circumference of the circle = 2πr

= 2*22/7*7

=2*22

=44cm

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Answer 2

Answer:

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