Introduction to Polygons

Introduction to Polygons

Definition of Terms

Types of Polygons

Multiple Choice

a polygon must have at least 3 sides

• False

• True

Multiple Choice

a polygon must must be open

• True

• False

Multiple Choice

An irregular polygon has all angles equal and all sides equal, otherwise it is regular

• True

• False

Fill in the Blank

A ___________ polygon has no angles pointing inwards. More precisely, no internal angle can be more than 180°.

Fill in the Blank

__________ polygon has a "cave" in it

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Multiple Choice

A hexagon is a six-sided polygon. How many diagonals does a hexagon have?

• 6

• 9

• 12

• 18

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Multiple Choice

A dodecagon is a 12-sided polygon. How many diagonals does a dodecagon have?

• 44

• 54

• 60

• 66

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