ANGLE ADDITION POSTULATE

1. 1. Write an equation that illustrates the Angle Addition Postulate for the following diagram. Do not enter spaces.

2. 2. Which is the correct name for the obtuse angle in the diagram?

• ∠ACB

• ∠ACD

• ∠BCD

• ∠C

3. Find the indicated measure. (Enter number value only)

4. Find the indicated angle measure. (Enter number value only)

5-9. Match the angle with its correct measure and classification.

• 180, STRAIGHT

• ∠MLQ

• 60, ACUTE

• ∠NLQ

• 120, OBTUSE

• ∠OLP

• 40, ACUTE

• ∠MLN

• 70, ACUTE

• ∠NLP

10. What equation can be used to help find ∠CBD?

• 3x + 15 + x + 7 = 94

• 3x + 15 = x + 7

• 4x + 22 = 94

• 3x + 15 = 94

11. What is the measure of angle CBD?

12. What equation can be used to help find ∠QSR?

• 3x + 1 + 2x - 6 = 135

• 3x + 1 = 2x - 6

• 5x - 5 = 135

• 2x - 6 = 135

13. What is the measure of angle QSR?

14. Find the measure of each angle. *Hint: Start with ∠a and remember a straight line measures 180°

• 20

• e

• 75

• c

• 15

• a

• 90

• b

• 160

• d