Question

Calculate the area of a circle if the circumference is 15.4

Answer 1

hi friend.

here is your answer.

circumference of a circle =2πr

$2 \times 22 \div 7 \times r = 15.4 \\ 44 \div 7 \times r = 15.4 \\ r = 15.4 \times 7 \div 44 \\ r = 2.45$

there fore

r=2.45

area of a circle

$\pi {r }^{2} \\ area = 22 \div 7 \times 2.45 \times 2.45 \\ = 18.865$

I hope that it will help you.

so please mark as brainliest answer.