Question

Anyone can help?

The area A of the shades region is given, find the central angle 0 of the circle and round to the nearest tenth

Answer 1

The answer is approximately 86°

Explanation:

Area of sector =ß/360×pir²

90.6=ß/360×22/7×11²

90.6=2662ß/2520

cross multiply

90.6×2520=2662ß

228312=2662ß

divide both sides by 2662

2662ß÷2662=228312÷2262

ß≈86°