8th Grade Angle Properties of Polygons

Find the missing angle.

• 75

• 105

• 100

• 70

Tags

CCSS.HSG.C.A.3

Find the value of X.

• 100
• 120
• 125
• 130

What is the measure of ONE interior angle in a regular hexagon?

• 60°

• 80°

• 108°

• 120°

What is the sum of exterior angles of a pentagon?

• 180
• 360
• 540
• 760

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

• 135
• 180
• 145
• 190

The sum of the interior angles of a polygon is 1620°.  How many sides does the polygon have?

• 8
• 11
• 3
• 16

The sum of the interior angles of a polygon is 3960°. How many sides does the polygon have?

• 12
• 24
• 25
• 13

What is the measure of ONE interior angle in a regular triangle (3 sides)?

• 15°
• 30°
• 60°
• 90°

What is the formula for the sum of the interior?

• S=360
• S=(n-2)180
• n=360/ext. angle
• 1 int. angle + 1 ext. angle=180

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

• 1440°
• 900°
• 1080°
• 1260°