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

Tags

CCSS.5.G.B.3

CCSS.5.G.B.4

A 4 sided regular polygon

• quadrilateral

• square

• pentagon

• triangle

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

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

• 60 degrees
• 140 degrees
• 240 degrees

Solve for x.

• 74

• 80

• 540

• 360

Solve for y.

• 51.67
• 171.67
• 360
• 180

Solve for one interior angle of a regular octagon.

• 180 degrees
• 45 degrees
• 135 degrees

Tags

CCSS.4.G.A.1

CCSS.4.MD.C.5

CCSS.4.MD.C.7

Solve for one EXTERIOR angle of a REGULAR nonagon.

• 140 degrees

• 40 degrees