en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular Word Problems >

The circumference of a circle is 16pi kilometers. What is the area?

Solution

T h e c i rc u m f ere n ce o f a c i rc l e i s 16​ π ki l o m e t ers . Wha t i s t h e a re a ?

Solution

a re a : 64 π k m^{2}

+1

Decimal

201.06192 \dots

Solution steps

Given:

c i rc u m f ere n ce : 16 π km

Radius given

C i rc u m f ere n ce = 16 π : r = 8

Circle Area given

r = 8 : A = 64 π

a re a : 64 π k m^{2}

Popular Examples

Twice a number added to 5 is equal to 15 . What is the number?7000 are invested in a bank account at an interest rate of 4 percent per year.Find the amount in the bank after 9 years if interest is compounded quarterly 78 is 45 percent of what number The difference between the squares of two consecutive odd numbers Carson is saving up money to buy a car. Carson puts 6,927.00 into an account which earns 8.89% interest, compounded quarterly. How much will he have in the account after 8 years?