Question

Score. Name: Radius Easy: 51 Circle - Area Example: Area of a circle = ? Radius (t) = 4 ft 4 ft Area = 1 =TX 4x4 Area = 161 ft? Find the exact area of each circle. 3) 1) 2) 13 ft 12 in 5 yd. Area = Area = Area = 4) 5) 6) 7 in 10 ft .......... 8 yd Area = Area = Area = 7) 8) 9) «3ft ...byd . 11 in. Area= Area = Area = 1 NA

Answer 1

Answer:

1). 169π ft^2

2). 144π in^2

3). 25π yd^2

Explanation:

The area A of the circle is given by the formula

$A=\pi r^2$

where π = 3.1415... and r is the radius of the circle.

To find the exact area of each circle, we put in the value of r and simply to get our result.

Question 1:

The radius r = 13 ft; therefore, the area is

$\begin{gathered} A=\pi(13)^2 \\ A=169\pi\lbrack ft^2\rbrack \end{gathered}$

Question 2:

The radius r = 12 ft; therefore, the area is

$\begin{gathered} A=\pi(12)^2 \\ A=144\pi\lbrack in^2\rbrack \end{gathered}$

Question 3:

The radius r = 5 yds; therefore, the area is

$\begin{gathered} A=\pi(5)^2 \\ A=25\pi\lbrack yds^2\rbrack \end{gathered}$