snpaul67 snpaul67

06-09-2014
Mathematics

Answered

If the area of a circle is 64 pi, then whats the circumference?

Verified Answer :

Anonymous Anonymous

06-09-2014

\(The\ area\ of\ the\ circle:A_O=\pi r^2\\\\The\ circumference\ of\ the\ circle:C_O=2\pi r\\===========================\\\\A_O=64\pi\Rightarrow\pi r^2=64\pi\\\\r^2=64\Rightarrow r=\sqrt{64}\Rightarrow r=6\\\\C_O=2\pi\cdot8=\boxed{16\pi}\)

Answer Link

06-09-2014

the circumference of a circle is \(\pi x^{2}\)

Answer Link

Related Questions

What is 558 as a decimal

While Soviets rejoiced in the success of the Sputnik program Americans

The inequality $-x^2-6<0$ has □ .

A yogurt costs 45p How many yogurts can be bought for five pounds

what are the special organs that store leukocytes

What is 13 of 225000

If you rub your finger across the body of an earthworm you may notice little ripples Earthworms were among the first organisms to display

what would be a easier formula for Greatest Common Factor

What was a global effect of the Great Depression A It helped increase agricultural prices B It helped to avoid another war C It increased the global job market

The graph shows the relationship between the hours a soccer team practiced after the season started and their total practice time for the year How many hours di