en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular Word Problems >

The radius of a circle is 20ft Find its circumference in terms of pi

Solution

T h e r a d i u s o f a c i rc l e i s 20 f t F in d i t s c i rc u m f ere n ce in t er m s o f π

Solution

c i rc u m f ere n ce : 40 π f t

+1

Decimal

125.66370 \dots

Solution steps

Given:

r a d i u s : 20 f t

Circle circumference given

r = 20 : C = 40 π

c i rc u m f ere n ce : 40 π f t

Popular Examples

Polly earned some money doing odd jobs last summer and put it in a savings account that earns 2% interest compounded monthly. After 5 years, there is 500.00 in the account. How much did Polly earn doing odd jobs?The sum of two consecutive even integers is −114. Find the two integers.A cube has an edge length of 2 centimeters. What is its volume, in cubic centimeters?50 decreased by 4 times a number, the result is 14 more than a number The perimeter of a quarter circle is 17.85 millimeters. What is the quarter circle's radius?