Mid-Chapter Review

Name this angle.

• acute
• right
• obtuse
• none of the above

Name this angle.

• acute
• right
• obtuse
• none of the above

Name this angle.

• acute
• right
• obtuse
• none of the above

1. Find X 

• 28
• 5
• 55
• 40

2. Find X

• 9
• 27
• 45

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

Find the value of x.

• 103

• 10

• 3

• 70

Find the value of x.

• 15

• 18

• 16

• 19

Find the missing angle.

• 28

• 32

• 60

• 38