Angle Relationships Review

∠1 and ∠3 can best be described as - 

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

• x = 118
• x = 108
• x = 28
• x = 58

Find the missing angle.  Find x.

• 20^o
• 70^o
• 160^o
• 180^o

What are vertical angles?

• Angles that are adjacent to each other
• Angles that add up to 180°
• Angles that are opposite of each other when lines intersect
• Angles that add up to 90°

What are complementary angles?

• Angles that add up to 180°
• Angles that add up to 90°
• Angles that are equal to each other
• Angles that are opposite of each other when lines intersect.

What are supplementary angles?

• Angles that add up to 180°
• Angles that add up to 90°
• Angles that are equal to each other
• Angles that are opposite of each other when lines intersect

What is the supplement angle to 42°?

• 48°
• 138°
• 100°
• Not possible

What is the complement angle to 30°?

• 60°
• 30°
• 150°
• 230˚

• 2x-6=7x+4
• 2x-6+7x+4=90
• 2x-6+7x+4=180
• 2x-6+7x+4=360

Solve for x

• 20
• 25
• 120
• 180