Question

HELP ASAP PLS!!
Find the area.
12 mi

Answer 1

on a half circle of radius 12 Area = (12²*ft)/2

on a right angle triangle Area = (12*12)/2 = 72

on 1/4 radius 12mi Area = (12²*ft)/4

Area = (144ft)/2 + 72 + (144ft)/4

Area = 72ft+36ft+72 = 108ft+72(mi²)

Explanation:

Answer 2

Answer: 108
`\pi` + 72
`mi^(2)` or 411.29
`mi^(2)`

Explanation:

In this situation, we need to seperate the polygon into two pieces, the part of a circle and the right angle triangle.

The area of the part of the circle is

`(3)/(4)` ×
`\pi`
`r^(2)` as it is
`(3)/(4)` of a circle. Insert r as 12(because the radius is 12), we get 108
`\pi`

For the right angle triangle, we use the equation
`(1)/(2) bh` , which in this case b and h are 12 so the area of the right angled triangle is
`(1)/(2)` × 12 × 12 = 72

So the combined area is 108
`\pi` + 72 or around 411.29
`mi^(2)`