Question

HELP find the area of a circle whose circumference is 3.2 HELP
a. 2.56
b. 10.24
c. 5.12

Answer 1

circumference= 2*pi*r
so, 2*pi*r=3.2
use this to find the radius
and then use radius to find the area of circle

Answer 2

You know that
\[3.2=2 \pi r\]

You can solve for r and plug into
\[A=\pi r^2\]

Answer 3

10.24?

Answer 4

Not quite