en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular Word Problems >

The diameter of a circle is 20 kilometers. What is the area?

Solution

T h e d iam e t er o f a c i rc l e i s 20 ki l o m e t ers . Wha t i s t h e a re a ?

Solution

a re a : 100 π k m^{2}

+1

Decimal

314.15926 \dots

Solution steps

Given:

d iam e t er : 20 km

Circle Area given

d = 20 : A = 100 π

a re a : 100 π k m^{2}

Popular Examples

If 4 less than the product of a number and 6 is 44, then what is the number?8 times the sum of twice a number and 5 A stereo that regularly sells for 130 is on sale for 60 percent off what is the sales price Malia is 46 years old. Zach is 28 years older than Joy and 17 years older than Malia. How old is Joy?The area of a circle is 144pi in². What is the circumference, in inches? Express your answer in terms of