Question

the circumference of a circle with the diameter of 9

Answer 1

Answer:

$d = 9 \\ r = \frac{9}{2} \\ circumfarence \: of \: circle = 2\pi r \\ \rightarrow \: 2 \times \frac{22}{7} \times \frac{9}{2} \\ \rightarrow \: \frac{198}{7}$

hope it helps you.....✌✌

Answer 2

Answer:

it is very easy do the half of diameter now apply the formula of circumference 2πr

the answer is 2(22/7)35/10

(44/7)35/10 = 154/7