en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

The circumference of a circle is 8𝜋 kilometers. What is the area?

Solution

The circumference of a circle is 8𝜋 kilometers. What is the area?

Solution

a re a : 16 π k m^{2}

+1

Solution steps

Given:

c i rc u m f ere n ce : 8 π km

Radius given

C i rc u m f ere n ce = 8 π : r = 4

Circle Area given

r = 4 : A = 16 π

a re a : 16 π k m^{2}

Popular Examples

A circle has a radius of 10.5 centimeters. What is the area of the circle? Use 3.14 for pi You want to have 800,000 when you retire in 30 years. If you can earn 7% interest compounded continuously, how much would you need to deposit now into the account to reach your retirement goal?rectangular driveway has a width of 9 feet.:If the area of the driveway is 432 square feet. What is the length of the driveway? Explain your reasoning.The sum of 16 and a number Find three consecutive integers whose sum is 324