1. 1. Assume that lines that appear tangent are tangent. Find the value of x.

2. 2. Find the value of x. If your answer is not an integer, round to the nearest tenth.

3. 3. Find the measure of arc AB.

4. 4. Find the center and radius of the circle: (x + 3) 2 + (y – 2) 2 = 9

5. 5. Lines that appear tangent are tangent. Find the value of each variable. If your answer is not an integer, round to the nearest tenth.

6. 6. Lines that appear tangent are tangent. Find the value of each variable. If your answer is not an integer, round to the nearest tenth.

7. 7. Lines that appear tangent are tangent. Find the value of each variable. If your answer is not an integer, round to the nearest tenth.

8. 8. Write the standard equation of the circle.

9. 9. Write the standard equation of the circle with center (3, 0) that passes through the point (- 2, - 4).

10. 10. Assume that lines that appear tangent are tangent. Find the value of x.

11. 11. Find the value of x. If your answer is not an integer, round to the nearest tenth.

12. 12. Find the measure of arc AB.

13. 13. Find the value of z.

14. 14. Find the center and radius of the circle: x 2 + (y – 9) 2 = 225

15. 15. Lines that appear tangent are tangent. Find the value of each variable. If your answer is not an integer, round to the nearest tenth.

16. 16. Lines that appear tangent are tangent. Find the value of each variable. If your answer is not an integer, round to the nearest tenth.

17. 17. Lines that appear tangent are tangent. Find the value of each variable. If your answer is not an integer, round to the nearest tenth.

18. 18. Write the standard equation of the circle.