Angle Relationships before Unit 3

∠1 and ∠3 can best be described as -

• complementary angles
• supplementary angles
• vertical angles
• adjacent angles

The special pair of angles shown are:

• complementary angles
• supplementary angles
• vertical angles
• angle bisector

If m∠1 = 30°, then m∠3 = 

• 30°
• 60°
• 150°
• undetermined

Two angles added together to equal 90 degrees are:

• Supplementary

• Complementary

• Right

• Vertical

These angles are...

• Complementary
• Supplementary
• Neither

Find the missing angle.

• 60
• 70
• 50
• 140

Supplementary Angles add up to _____ degrees.

• 180
• 55
• 100
• 90

What is the measure of the missing angle?

• 92
• 102
• 82
• 72

If the measure of ∠2 is 83°, what is the measure of ∠3?

• 7°
• 17°
• 83°
• 97°

Vertical angles are always

• acute
• total 180 degrees
• congruent (equal measures)
• adjacent angles