ar

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

شائع Word Problems >

The circumference of a circle is 30.144 kilometers. What is the circle's area?

الحلّ

T h e c i rc u m f ere n ce o f a c i rc l e i s 30.144 ki l o m e t ers . Wha t i s t h e c i rc l e^{'} s a re a ?

الحلّ

a re a : 72.31 k m^{2}

خطوات الحلّ

Given:

c i rc u m f ere n ce : 30.144 km

Radius given

C i rc u m f ere n ce = 30.144 : r = 4.79756 \dots

Circle Area given

r = 4.79756 \dots : A = 72.30892 \dots

a re a : 72.31 k m^{2}

أمثلة شائعة

Four consecutive integers add up to 390. What is the least of these integers?Maria is 7 years older than her brother Robert. In 2 years, Maria's age will be 4 times Robert's age 3 years ago. Find their present ages.48 less than twice a number The sum of 4 times a number and 2 equals 6 What number is 128% of 75?