fr

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Populaire Word Problems >

The circonférence of a circle is 18pi cm. What is the area, in square centimeters? Express your answer in terms of pipi.

Solution

T h e c i rc u m f ere n ce o f a c i rc l e i s 18 π c m . Wha t i s t h e a re a, in s q u a re ce n t im e t ers ? E x p ress yo u r an s w er in t er m s o f p iπ .

Solution

a re a : 81 π c m^{2}

+1

Décimale

254.46900 \dots

étapes des solutions

Given:

c i rc u m f ere n ce : 18 π c m

Cercle de rayon donné

C i rc u m f ere n ce = 18 π : r = 9

Cercle de surface donnée

r = 9 : A = 81 π

a re a : 81 π c m^{2}

Exemples populaires

The sum of two numbers is 48. The smaller number is 8 less than the larger number. What are the numbers?the product of 5 and a number is 45 what is the result when the number 29 is decreased by 6%The sum of three consecutive natural numbers is 987, find the numbers.If I double my number then it is equal to the number I though of yesterday he also says the number i thought of yesterday was 4 less than 3 times today's number what number did the magician think of yesterday