1. Geometry Warm Up

2. 10-6 CIRCLES AND ARCS Objective: To find the circumference and arc length.

3. Circumference Circumference: the distance around the circle Pi: ratio of the circumference of a circle to it’s diameter

4. pi The number pi is irrational

5. Coplanar circles Concentric circles: coplanar circles that have the same center.

6. Problem 1

7. Try with a partner

8. Arc Length

9. Problem 2 What is the length of each arc shown in red? Leave your answer in terms of

10. Problem 3 What is the length of a semicircle with radius 1.3 m? leave your answer in terms of.

11. TOO

12. Homework Pg. 654 # 24 – 36, 52 – 54