Find the area of the composite figure in terms of the figure (use 3.14 for pi)

Question

asked Dec 26, 2021 55.2k views

1 Answer

Hegemon · Answer 1 · 2021-12-30T05:53:48+0000

Answer:

105.12 ft²

Explanation:

Let's first find the area of the rectangle.

$10\cdot8=80$ ft², so the rectangle has an area of 80ft².

To find the area of the semi-circle, we find the area of a whole circle and divide by two.

The formula to find the area of a circle is
$\pi r^2$ . The radius is 4, as the diameter is 8.

$3.14\cdot4^2$

$3.14\cdot16$

50.24/2=25.12

Add 80 and 25.12:

80+25.12=105.12

Hope this helped!