Interior and Exterior Angles of Polygons

How many sides does a nonagon have?

Tags

CCSS.2.G.A.1

How many sides does a pentagon have?

Tags

CCSS.2.G.A.1

How many sides does a decagon have?

Tags

CCSS.2.G.A.1

How many sides does a heptagon have?

Tags

CCSS.2.G.A.1

What is the measure of each exterior angle of a regular 20-gon?

What is the SUM of the angle measures in a triangle (3 sides)?

• 60°

• 90°

• 120°

• 180°

Tags

CCSS.8.G.A.5

What is the formula for the sum of interior angles in a polygon?

• (n−2)180

• (n−2)180÷n

• 360

• 360/n

Find the angle sum of the interior angles of the hexagon.

• 180°

• 540°

• 720°

• 1080°

What is the sum of the interior angles of the nonagon shown?

• 720° 
• 900° 
• 1080° 
• 1260° 

What is the sum of interior angles for a pentagon?

• 900
• 540
• 360
• 108