Polygons

It is a four sided polygon

• Triangle

• Quadrilateral

• Pentagon

• Octagon

Polygon comes from Greek words poly and gon meaning

• Many and angles

• Many and sides

• Few and angles

• Few and sides

A polygon is _____ if and only if a line containing its side or its extended side does not cross the interior of the polygon

A polygon should have at least how many sides and vertices?

• 2

• 3

• 4

• 5

Which of the following is an irregular polygon?

• 
• 
• 
• 

A _____ polygon is both equiangular and equilateral

A pentagon has _____ sides.

• 4

• 5

• 6

• 7

A 10-sided polygon is called _______

• octagon

• nonagon

• decagon

• dodecagon

A polygon is a _____ plane figure consists of at least 3 sides and vertices.

Equiangular means

• all sides are congruent

• all vertices are collinear

• all angles are congruent

• all sides are coplanar