pt

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular Word Problems >

The circunferência of a circle is 21pi cm. What is the area, in square centimeters? Express your answer in terms of

Solução

T h e c i rc u m f ere n ce o f a c i rc l e i s 21 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

Solução

a re a : 346.36 c m^{2}

Passos da solução

Given:

c i rc u m f ere n ce : 21 π c m

Raio do círculo dado

C i rc u m f ere n ce = 21 π : r = 10.5

Área do círculo dado

r = 10.5 : A = 346.36059 \dots

a re a : 346.36 c m^{2}

Exemplos populares

What is the result when the number 86 is increased by 50%?the sum of 5 times a number and 6 is equal to 8 The sum of 4 consecutive even integers is 76. What is the value of the least integer?Belle puts 1,000.00 into an account to use for school expenses. The account earns 6% interest, compounded quarterly. How much will be in the account after 6 years?two consecutive whole numbers that sqrt(105) lies between.