Answer:
one third :) ;) hope it helps
It is 15x because you multiply 3 and 5 and keep your x with it
Step-by-step explanation:
area of a circle= πr²
and r= half diameter
therefore we have r=10/2=5
area= 5² x π
area= 25π
circumference=2πr
circumference= 2xπx5
circumference=10π
