Find the area of a circle with a radius of 2 and another circle with a radius of 6

Area of Circle with radius Area with Circle with radius

of 2 of 6

A = π r^2 A=πr^2

A = π (2) ^2 A=π (6) ^2

A=4π A=36π

A = 12.57 A = 113.1

Area=π times radius^2

so a=πr^2

if radius is 2 then

a=π (2^2) = π (4)

π is roughly 3.14159 so

a=3.14159 times 4=12.5664

area is 12.57 square units

a=πr^2

r=6

a=π (6^2) = π (36)

3.14159 is roughly π

3.14159 times 36=113.097

area is 113.10 square units