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Phổ biến Word Problems >

The chu vi of a circle is 11pi m. What is the area, in square meters? Express your answer in terms of pipi

Lời Giải

T h e c i rc u m f ere n ce o f a c i rc l e i s 11 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

Lời Giải

a re a : 95.03 m^{2}

Các bước giải pháp

Given:

c i rc u m f ere n ce : 11 π m

Bán kính đường tròn đã cho

C i rc u m f ere n ce = 11 π : r = 5.5

Diện tích hình tròn đã cho

r = 5.5 : A = 95.03317 \dots

a re a : 95.03 m^{2}

Ví dụ phổ biến

the quotient of a two and a number plus six what is the area of a circle if the đường kính is 18 If a circle has a chu vi of 13pi, what is its exact diameter?Jack is 18 years old. Katie is 32 years older than Jack. How old is Katie Bentley invested 430 in an account paying an interest rate of 2.5% compounded continuously. Assuming no deposits or withdrawals are made, how long would it take, to the nearest year, for the value of the account to reach 510?