1. Warm up

3. 2 Types of Answers Rounded Type the Pi button on your calculator Toggle your answer Do NOT write Pi in your answer Exact Pi will be in your answer

4. Area The amount of space occupied. r A=  r 2

5. Find the EXACT area. 1.r = 14.3 in 2.d = 33 m

6. Find the area. Round to the nearest tenths.

7. Example 3 If  S has a diameter of 10 inches, find the area of the circle to the nearest hundredths. A = 78.54 in 2

8. Sector the region bounded by two radii of the circle and their intercepted arc.

9. Area of a Sector

10. Example 4 Find the area of the sector to the nearest hundredths. A  10.91 in 2 50  5in Q R

11. Example 5 Find the exact area of the sector. 6 cm 98  8 in Q R

12. Example 6 Find the area of a sector with a central angle of 45° if the diameter of the circle is 12 inches. Round to the nearest hundredths. A  14.14 in 2

13. Example 7 A spinner is divided into 12 equal sections and the radius of the spinner is 4 inches. Every other section is shaded. Find the exact total area of the shaded region on the spinner. A = 8  in 2

14. Classwork Worksheet 20 Problems Round to 2 decimal places

15. Homework Finish the Worksheet 20 Problems Round to 2 decimal places