1. 10.7 Areas of Circles and Sectors

2. 10.7 – Areas of Circles & Sectors Goals / “I can….” Find the areas of circles, sectors, and segments of circles

3. 10.7 – Areas of Circles & Sectors Area of a circle A = πr 2 r

4. 10.7 – Areas of Circles & Sectors How much more pizza is there in a 12 in. – diameter pizza than a 10 in. pizza?

5. 10.7 – Areas of Circles & Sectors A sector of a circle is a region bounded by an arc of the circle and the 2 radii to the arc’s endpoints. Translated in English………it’s like a piece of pizza.

6. 10.7 – Areas of Circles & Sectors Area of a sector of a circle / pizza A = πr mAB 360 2 A B r

7. 10.7 – Areas of Circles & Sectors Find the area of sector ZOM Z M O 72° 20

8. 10.7 – Areas of Circles & Sectors Find the area of the segment A B 10

9. 10.7 – Areas of Circles & Sectors

10. Find the area of the segment HINT: HINT: Area of Sector - Area of Triangle = A B 10

11. 10.7 – Areas of Circles & Sectors Let’s try 1 more to make sure you guys got it

12. 10.7 – Areas of Circles & Sectors Find the area of the shaded segment