Register
Find the area of a circle with radius r = 9 cm
120k views
0 votes
Find the area of a circle with radius r = 9 cm

User Yrlec
by
7.6k points

1 Answer

6 votes

We can use the following equation to find the area of a circle:


A=\pi\cdot r^2

where pi equals 3.1416 and r is the radius.

In this case,we have the following:


\begin{gathered} A=(3.1416)(9)^2=(3.1416)(81)=254.4696 \\ \Rightarrow A=254.47\operatorname{cm}^2 \end{gathered}

therefore, the area of the circle is 254.47 square cm

User Hdx
by
6.9k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

8.3m questions

10.9m answers

Other Questions

What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement  how thick must the cement be to cover field
Write words to match the expression. 24- ( 6+3)
Link Copied!