Chapter 6 Discovering Geometry

What is the SUM of the angle measures in a nonagon (9 sides)?

• 1440°
• 900°
• 1080°
• 1260°

What is the SUM of the angle measures in a hexagon (6 sides)?

• 720°
• 1080°
• 600°
• 540°

What is the measure of ONE interior angle in a regular pentagon (5-sides)?

• 90°
• 108°
• 120°
• 180°

Find the missing angle.

• 75
• 85
• 100
• 45

Find the value of X

• 94
• 25
• 36
• 180

What is the sum of the exterior angles of a 20-gon?

• 180
• 360
• 3240
• 162

Find the value of x

• 87°
• 54°
• 101°
• 92°

Find the number of sides of a polygon with one exterior angle measuring 6⁰.

• 60
• 30
• 20
• 10

Find the value of X.

• 60
• 120
• 85
• 55

What is the measure of each exterior angle of a regular octagon?

• 45 degrees
• 360 degrees
• 1080 degrees
• 135 degrees