Classifying Polygons

Name the polygon with seven sides.

• dodecagon
• octogon
• heptagon
• hexagon

How many sides does a decagon have?

• 12
• 11
• 9
• 10

How many sides does an Octagon have?

• 4
• 3
• 9
• 8

Is this shape a POLYGON?

• Yes
• No

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

• 1440°
• 900°
• 1080°
• 1260°

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

• 60°
• 90°
• 120°
• 180°

Find the value of X.

• 100
• 120
• 125
• 130

Find the measure of each angle indicated. 

• 139°
• 66°
• 138°
• 116°

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

• 180° 
• 540° 
• 720° 
• 1080° 

How many sides does a Quadrilateral have?

• 4
• 3
• 6
• 9