Question

I have to find the circumference of 15 cm​

Answer 1

r = 2.39 and C=2πr=2·π·2.39≈14.99997

Explanation:

Using the formula

C=2πr

Solving for r=C 2π=15

2·π≈2.38732

and then u round up the 7 told the 8 to go up.

2.39