Question

Area of a sector of a circle

Answer 1

radians

Answer 2

and arc length please!! :D

Answer 3

area = 1/2 * r^2 * theta
arclenght = r * theta

Answer 4

Find the total area of the circle simply by using the formula PI*r^2.
Then, if the angle of the sector is given, just multiply by (angle/2pi) or (angle/360) if in degrees.

Answer 5

Area of sector: pi r^2 (area) multiplied by the % of circle. You can find this % by taking the radian measure/2pi

Arc Length is found through a similar process of % * 2pi r (circumference)

Answer 6

Arclength is the same method, but of course you find total circumference instead of total area.

Answer 7

Thanks!