Geometry Warm ups

10-7 AREAS OF CIRCLES AND SECTORSObjective: to find the areas of circles, sectors, and segments of circles.

Area of a circle

Problem 1

Try with a partner • What is the area of a circular wrestling region with a 42-ft

diameter?

Sector of a Circle• Sector of a circle: region bounded by an arc of the circle

and the who radii to the arc’s endpoints.

Problem 2

Try with a partner • A circle has a radius of 4 in. What is the area of a sector

bounded by a 45 degree minor arc? Leave your answer in terms of pi.

Homework• Pg. 663 # 7 – 22 all