Question

A circle has a diameter of 10 centimeters and a central angle eog that measures 210°. what is the area of the shaded sector? use 3.14 for pi and round your answer to the nearest tenth.

Answer 1

Explanation:

1. 121

2. 143

3. 151

Answer 2

The area of sector is given by:
A=θ/360πr²
θ=210°
r=10/2=5 cm
thus the area will be:
A=210/360×π×5²
A=210/360×3.14×5²
A=45.8 cm²