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

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

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

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