Secondary Math I Name:_________________________________WS 6-4 Date:___________________ Class:________

1. Use the Angle Addition Postulate to find the measure of the unknown angle.

2. is the angle bisector of ∠RPS . Find the two angle measures not given in the diagram.

Use the figure at the right.

3. Are 1 and 2 a linear pair?

4. Are 2 and 5 vertical angles?

5. Are 3 and 5 adjacent angles?

Decide whether the statement is true or false.

6. If m 1 = 40°, then m 3 = 40°

7. 4 and 3 are congruent.

8. m 2 = .

Use the figure at the right.

9. If m 6 = 78°, then m 7 = _______.

10. If m 9 = 124, then m 7 = _______.

11. If m 8 = 158°, then m 9 = _______.

A and B are supplementary. Find the m A and the m B. 12. 13. m∠ A=3 x m∠ A=6 x−1 m∠B=x+8

Complete the statements given that

14. If

15. If

16. If

17. Explain what you know about each of the following statements based on the following

diagram. Explain how you know.

bisects