Question

Complete the steps, which describe how to find the area of the shaded portion of the circle. 1. Find the area of the sector by multiplying the area of the circle by the ratio of the _________________________ to 360. 2. Subtract the area of the triangle from the area of the sector. length of the radius length of the diameter measure of the central angle circumference of the circle

1. dangkhoa
The area of the sector is found by multiplying the area of the circle and the ratio of the angle subtended (measure of the central angle) by the sector to 360.

### How to find the area of a sector?

1) The formula for area of a sector of a circle is;
A = (θ/360) * πr²
where πr² is area of circle
θ is the angle subtended by the sector
Thus, we conclude that the area of the sector is found by multiplying the area of the circle and the ratio of the angle subtended (measure of the central angle) by the sector to 360.
2) The area of the triangle formed as part of the segment is subtracted from from the area of the sector.