ja

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

人気のある Word Problems >

The 円周 of a circle is 144pi ft^2. What is the area, in square feet? Express your answer in terms of pipi.

解

T h e c i rc u m f ere n ce o f a c i rc l e i s 144 π f t^{2} . Wha t i s t h e a re a, in s q u a re f ee t ? E x p ress yo u r an s w er in t er m s o f p iπ .

解

a re a : 5184 π f t^{2}

+1

十進法表記

16286.01631 \dots

解答ステップ

Given:

c i rc u m f ere n ce : 144 π f t

指定された円の半径

C i rc u m f ere n ce = 144 π : r = 72

指定された円の面積

r = 72 : A = 5184 π

a re a : 5184 π f t^{2}

人気の例

what is the probability of getting a red king card in a deck of cards two fair dice are rolled. what is the probability of rolling a sum not more than 6 Determine the simple interest earned on 10,000after 30 years if the APR is 14%.Clare opened a savings account and deposited 200.00. The account earns 11% interest, compounded quarterly. If she wants to use the money to buy a new bicycle in 3 years, how much will she be able to spend on the bike?man sold an article for Rs. 2400 thus making a profit of 20% Find the cost price of the article.