Question

In your computation, approximate its value as 3.14.

Find the area of the figure. If you need to use
Rectangle topped by a semicircle
15 in
12 in
406,08 sq. in.
b. 184.71 sq. in.
C. 293.04 sq. in
d. 236.52 sq. in

Answer 1

Answer: d

Explanation:

Find the area of the rectangle.

`A=l*w\\A=(15in)(12in)\\A=180in^2`

Find the area of the base of the semicircle.

`A=\pi r^2`

12 in would be the diameter, divide by 2 to get the radius.

`(12)/(2)=6`

Plug this into the formula.

`A=(3.14)(6)^2\\A=113.04in^2`

Since we do not have a full circle but a semi one instead, we must divide our result by 2.

`(113.04)/(2)=56.52in^2`

Add both areas.

180+56.52=236.52
`in^2`