Question

Find the area of the shaded region
Radius is 5 and the angle is 80

Answer 1

Area of the sector = (80/360)πr² = (2/9)π(5)² ≈ 8.77

180 - 80 = 100

sin(100) = h/5

h = 5sin(100) ≈ 4.8

Area of triangle = (1/2)bh = (1/2)(5)(4.8sin(100)) ≈ 11.96

8.77 - 11.96 ≈ -3.19

Note that the area is negative, which doesn't make physical sense. This is because the triangle extends beyond the sector, so the shaded region does not have a well-defined area.

sorry if wrong.

Answer 2

5.1cm^2

Explanation:

hope it helps :)