angle relationships

• 20°
• 40°
• 60°
• 80°

• 35°
• 60°
• 85°
• 95°

• 75°
• 70°
• 95°
• 55°

• 100°
• 80°
• 90°
• 180°

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

• A
• B
• C
• D

• 11
• 9
• 6
• 12

What is the value of x?

• 60
• 26
• 14
• 10

Find the length of the missing side. 

• 17 cm
• 22 cm
• 15 cm
• 13 cm

What is the length of x?

• 5
• 7
• 8
• 25