1. Circumferences & Areas of Circles

2. Circle information Defn: Points on a plane that are equidistant from a given point (CENTER). Radius: From center to point on the circle Diameter: 2 times the radius r d

3. Circle Circumference C = 2  r 5 in

4. Circle Circumference C = 2  r 5 in 31.42 in

5. Circle Circumference C = 2  r 7cm

6. Circle Circumference C = 2  r 7cm 43.98 cm

7. Circle Circumference C = 2  r 14’

8. Circle Circumference C = 2  r 14’ 43.98 ft

9. Circle Circumference C = 2  r 6’

10. Circle Circumference C = 2  r 6’ 18.85’

11. Circle Area A =  r 2 5 in

12. Circle Area A =  r 2 5 in 78.54 in 2

13. Circle Area A =  r 2 7cm

14. Circle Area A =  r 2 7cm 153.94 cm 2

15. Circle Area A =  r 2 14’

16. Circle Area A =  r 2 14’ 153.94 ft 2

17. Circle Area A =  r 2 6’

18. Circle Area A =  r 2 6’ 28.27 ft 2

19. Circle Area Find the area of the shaded region. 5” 2”

20. Circle Area Area large – Area small = Area shaded 5” 2”

21. Circle Area Find the area of the shaded region. 6’ 3’

22. Circle Area Find the area of the shaded region. 3’