Question

if area of circle is 38.5 cm square find its circumference brainly​

Answer 1

Answer:

Area of circle =pie r^2

38.5 =22/7 x r^2

root under 12.25 =r^2

r=3.5 cm

Circumference of circle =2pie r

= 2 x 22/7 x 3.5

=22 cm

Hope it will help you

Answer 2

Step-by-step explanation:

given

Area of circle =38.5cm

FIND

The circumference of circle

so,

Area of circle=πr^2

=22/7*r^2=38.5

=22*r^2=38.5*7

=r^2=12.25

=r=✓12.25

=r=3.5

now

circumference of circle=2πr

=2*22/7*3.5

=22cm

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