Exterior and Interior angles of a polygon

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

• 1440°
• 900°
• 1080°
• 1260°

What is the measure of ONE interior angle in a regular hexagon (6 sides)?

• 60°
• 80°
• 108°
• 120°

What is the name of a 7 sided polygon?

• hexagon
• heptagon
• octagon
• nonagon

Tags

CCSS.2.G.A.1

What is the sum of the exterior angles in a decagon?

• 10
• 360
• 36
• 1440

Find the measure of angle k.

• 9

• 97°

• 48°

• 79°

Which formula is used to find the sum of the interior angles of a polygon?

• 180
• 360
• (n-2)180
• n(n-3)/2

Find the measure of one exterior angle of a regular 18-gon.

• 160°
• 360°
• 20°
• 2280°

Tags

CCSS.HSG.CO.A.1

Solve for x. 

• 12
• 10
• 25
• 5

If an exterior angle of a regular polygon has a measure of 36 degrees, how many sides does it have?

• 10
• 3
• 7
• 11

If an interior angle of a regular polygon has a measure of 120 degrees, how many sides does it have?

• 6
• 12
• 5
• 8

Tags

CCSS.HSG.CO.A.1