Question

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

Answer 1

Answer: measure of the central angle.

Explanation/formulas:
- Sector area = (central angle / 360) × πr^2.
- Triangle (formed by the two radii and the chord) area = (1/2) r^2 sin(central angle).

So the shaded (segment) area = (central angle / 360)πr^2 − (1/2) r^2 sin(central angle).