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인기 있는 Word Problems >

The 원둘레 of a circle is 25pi m. What is the area, in square meters? Express your answer in terms of pipi

해법

T h e c i rc u m f ere n ce o f a c i rc l e i s 25 π m . Wha t i s t h e a re a, in s q u a re m e t ers ? E x p ress yo u r an s w er in t er m s o f p iπ

해법

a re a : 490.87 m^{2}

솔루션 단계

Given:

c i rc u m f ere n ce : 25 π m

주어진 원 반지름

C i rc u m f ere n ce = 25 π : r = 12.5

주어진 원 영역

r = 12.5 : A = 490.87385 \dots

a re a : 490.87 m^{2}

인기 있는 예

Find two consecutive whole numbers that sqrt(12) lies between.two more than three times a number is four Find the future value and interest earned if 8804.56 is invested for 9 years at 6% compounded semiannually.the 차이 of two numbers is 35. The sum of three times the smaller number and the larger number is 47. What are the numbers Tessa invested 7,179 into an account that earned interest at an annual rate of 3%. How much money will she have in the account after 4 years?