PHS: Angles of Polygons

In a Polygon, what is the formula for the sum of the interior angles?

• S=360

• 180(n-2)

• n=360/ext. angle

• 1 int. angle + 1 ext. angle=180

What is the sum of all angles?

• 180

• 720

• 360

• Can't tell

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

• 1440°
• 900°
• 1080°
• 1260°

If the sum of the interior angles is 3600°, what is the name of the polygon?

• 15-gon

• 18-gon

• 22-gon

• decagon

What is the exterior angle sum of ALL polygons?

• ^90o

• 180^o

• 270^o

• 360^o

The following polygon is a Regular Pentagon. Find the measure of EACH EXTERIOR angle of the polygon.

• 50°

• 55°

• 72°

• 355°

Find the value of y.

• 125
• 135
• 140
• 110

Tags

CCSS.7.G.B.5

What is the measure of one EXTERIOR angle of a regular octagon?

• 60
• 45
• 1080
• 135

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

• 180
• 360
• (n-2)180
• n(n-3)/2

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

• 60°

• 80°

• 108°

• 120°