2. A little more practice You’ve got this! High five!
Change the following radian measures into degree measures
30° °
You’ve got this!
High five!

3. A little more practice – Warm Up
Change the following degree measures into radian measures and radian measures into degrees (do these in your notebook)
60° °
120° °
You can do it!

4. 1.
What is the formula to find the length of an arc?

5. 2. Find the length of the arc

6. 3.
What is the formula to find the area of a sector?

7. Calculate the area of the shaded path4.
Calculate the area of the shaded path

8. A square which has sides of length 12cm has the same area as a circle.5.
A square which has sides of length 12cm has the same area as a circle.
Calculate the radius of the circle.

9. Find the missing radius6.
Find the missing radius

10. 7.
Convert into degrees

11. Find the missing diameter8.
Find the missing diameter

12. 9.
Calculate the area of a sector whose arc length is 10 inches and radius of 12.

13. Calculate the area of the shaded region
10.
Calculate the area of the shaded region

14. 11.
Circle A has radius 2.5 and circle B has radius 7.5. What is the transformation that would map circle A onto circle B.

15. 12.
Calculate the circumference

16. A circle has a radius of 3.4m, calculate the area of the circle.
13.
A circle has a radius of 3.4m, calculate the area of the circle.

17. 14.
An arc has an angle of 15° and a radius of 144. What is the length of the arc?

18. 15.
Convert into degrees

19. Find the central angle of an arc length that is m with radius of 15 m.
16.
Find the central angle of an arc length that is m with radius of 15 m.

20. 17.
Convert 284° into radians

21. 18. Find the area of the sector

22. Calculate the arc length
19.
Calculate the arc length
224 cm

23. KEY