Angle Relationships Pd 6

Angle Relationships

Complementary, Supplementary, and Vertical Angles.

Complementary Angles

• Angles whose measures ADD up to 90 degrees.

• They do NOT have to share a side

• They will BOTH be ACUTE angles

Supplementary Angles

• Angles whose measure ADD up to 180 degrees.

• They do NOT have to share a side

• One acute and one obtuse

• OR two RIGHT angles

Vertical Angles

• Two angles whose measures are the SAME

• They do NOT share a side, but MUST share a VERTEX

• Can be EITHER acute or obtuse

Multiple Choice

Which equation would represent SUPPLEMENTARY angles?

• < 1 + < 2 = 90

• < 1 + < 2 = 180

• < 1 = < 2

Fill in the Blanks

Two angles are supplementary and one of them is 127 degrees. What is the size of the other angle?

Multiple Choice

Which of the angles are supplementary?

• < HGD and < GFB

• < HGD and < AFE

• < HGD and < HGC

• < HGD and < CGF

Multiple Choice

Which equation would represent VERTICAL angles?

• < 1 + < 2 = 90

• < 1 + < 2 = 180

• < 1 = < 2

Fill in the Blanks

If two angles are VERTICAL angles and one of the angles measures 100 degrees, what is the measure of the other angle?

Multiple Choice

Which of the following angles are vertical?

• y and t

• y and z

• s and z

• z and w

Multiple Choice

Which equation would represent COMPLEMENTARY angles?

• < 1 + < 2 = 90

• < 1 + < 2 = 180

• < 1 = < 2

Fill in the Blanks

IF two angles are complementary and one of them is 34 degrees, what is the other angle measure?

Multiple Choice

ABC is a right triangle. Which of the following pairs of angles are complementary?

• < BAD and < ABC

• < BAD and < DAC

• < DAC and < ACB

• < BDA and < CDA