Question

The area of a circle is 38.5 c m squared.Its circumference is:​

Answer 1

Answer:

21.997

Step-by-step explanation

Answer 2

Answer:

Circumference of circle is 22 cm

Step-by-step explanation:

Area of circle = πr²

22/7 x r² = 38.5

22r² = 38.5 x 7

22r² = 269.5

r² = 269.5/22

r² = 12.25

r = √12.25

r = 3.5

now

circumference of circle = 2πr

                               = 2 x 22/7 x 3.5

                               =  154/7

                              = 22 cm