Angles in Polygons

What is the formula for the sum of the interior?

• S=360

• S=(n-2)180

What is the formula for finding ONE interior angle of a polygon?

• S= (n-2)180
• S= (n-180)2
• S= (n-2)180/n
• S= (n - 180)2/n

What is the formula for the sum of the exterior?

• S=360

• S=(n-2)180

What is the formula for finding ONE exterior angle of a polygon?

• S= 360

• S= 360/2

• S= 360/n

• S= 180

How many of the following polygons are CONCAVE?

• All are concave
• 1 is concave
• 2 are concave
• None are concave

Tags

CCSS.4.G.A.2

Is the figure a polygon? Is it convex or concave?

• Not a polygon, convex
• Polygon, convex
• Not a polygon
• Polygon, concave

Tags

CCSS.HSG.CO.A.1

Find the missing angle.

• 75
• 85
• 100
• 45

Tags

CCSS.HSG.C.A.3

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

• 60°
• 80°
• 108°
• 120°

Tags

CCSS.HSG.CO.D.13

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

• 15°
• 30°
• 60°
• 90°

Tags

CCSS.HSG.CO.C.10

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

• 1440°

• 900°

• 1080°

• 1260°