Geometry Polygon Review

What is a Regular Polygon?

• All sides different length and different angles
• All sides different length and same angles
• All sides equal length and different angles
• All sides equal length and equal angles

A six sided polygon

• square
• pentagon
• hexagon
• heptagon

A 4 sided regular polygon

• quadrilateral
• square
• pentagon
• triangle

Interior Angles are...

• inside the polygon
• outside the polygon

Exterior Angles are...

• inside the polygon
• outside the polygon

What do the exterior angles of a polygon add up to?

• 60 degrees
• 360 degrees
• 180 degrees
• 100 degrees

What is the formula for finding the sum of interior angles of a 20-sided polygon?

• (20-2) x 180
• 20 x 180
• 360

The exterior angle is 60 degrees, how much is the interior angle?

• 360⁰ - 60⁰ = 300⁰
• 180⁰ - 60⁰ = 120⁰

If an interior angle is 120 degrees, how much is its exterior angle?

• 60 degrees
• 140 degrees
• 240 degrees

Solve for the missing angle.

• 108 degrees
• 540 degrees
• 360 degrees
• 163 degrees