Question

The area of circle is 38.5 sq m. Find its circumference

Answer 1

22 m is right answer

Answer 2

Hlo

here is ur answer..

area of circle = πr²

22 / 7 × r² = 38.5

r² = 38.5 × 7 / 22

r² = 269.5 / 22

r² = 12.25

r = √12.25

r = 3.5

circumfrence = 2πr

2 × 22 / 7 × 3.5

2 × 22 × 0.5

22cm²✔

hope it helps♥.