Angles in Polygons

What is the formula for the sum of the interior angles?

• 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°

Tags

CCSS.7.G.B.6

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

• 720°
• 1080°
• 600°
• 540°

Tags

CCSS.7.G.B.5

Find the value of X

• 94
• 25
• 36
• 180

Tags

CCSS.7.G.B.5

What is the SUM of the EXTERIOR angles of a hexagon?

• 360
• 120
• 60
• 720

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

Tags

CCSS.4.G.A.1

CCSS.4.MD.C.5