Polygons

What is a polygon?

• A closed figure made up of straight line segments
• An open figure made up of straight line segments
• A closed figure made up of curved edges
• An closed figure made up of crossed line segments

Which one is not a polygon?

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• 
• 

A polygon is regular if....

• All angles are equal and all sides are equal

• Only all sides are equal

• Only all angles are equal

• All sides have different measurements

Name this polygon.

• Quadrilateral

• Hexagon

• Pentagon

• Octagon

What are the possible names of this shape? (check all that apply)

• polygon

• quadrilateral

• rectangle

• trapezoid

• parallellogram

Classify this polygon

• Regular

• Irregular

The figure shown is called a _________ because it has 8 sides.

• octagon

• heptagon

• pentagon

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

• 180(n−2)
• 180(n−2)÷n
• 360
• 360/n

What is the measure of a single interior angle for a regular pentagon?

• 900
• 540
• 360
• 108

Solve for x

• 94
• 25
• 36
• 180