Lesson 23 Classify Polygons

What is a polygon?

• A closed plane figure made up of line segments
• An open plane figure made up of line segments
• A closed plane figure made up of rays
• An open plane figure made up of rays

How many sides does a Triangle have?

• 4
• 3
• 2
• 6

Which of these figures are considered polygons?

• a, b, c, d
• b, d, e, f
• a, b, c
• a, e, f

A POLYGON IS:
A figure that curves

• correct
• incorrect
• not sure

A POLYGON IS:
A figure with closed lines

• correct
• incorrect
• not sure

How many sides does a Quadrilateral have?

• 4
• 3
• 6
• 9

This is a pentagon. Pentagons have...

• 5 sides and 5 angles
• 3 sides and 2 angles
• 2 sides and 3 angles
• 10 sides all together

How many sides do I have?

• 5
• 6
• 4
• 7

What polygon has 5 sides and 5 vertices?

• Pentagon

• Hexagon

• Octagon

• Quadrilateral

How many sides do I have?

• 3
• 4
• 6
• 5