Worksheet: Classifying Polygons

In this worksheet, we will practice identifying polygons as triangles, quadrilaterals, pentagons, hexagons, or octagons depending on the number of their sides.

Q1:

Which of these polygons has six sides?

• Athe yellow one
• Bthe green one
• Cthe red one
• Dthe blue one

Q2:

How many sides does the following figure have?

Q3:

Faresโs brother draws a 3-side figure in the shape of a polygon to show what the roof of a tree house will look like. What kind of polygon is it?

• Aa square
• Ba rhombus
• Ca rectangle
• Da triangle
• Ea cube

Q4:

Maged made a triangle using 3 toothpicks. He now wants to change the triangle into a hexagon. How many more toothpicks does he need?

Q5:

Adam has used shapes to make this picture of a house.

What shape is the door?

• Aa circle
• Ba square
• Ca rectangle

What shapes are the windows?

• Aa square and a circle
• Ba square and a triangle
• Ca rectangle and a triangle

How many triangles has he used?

• A1
• B3
• C2

Q6:

How many more sticks does Sameh need to change this hexagon into an octagon?

Q7:

What is the name for a 3-sided polygon?

• Apentagon
• Chexagon
• Dtriangle

Q8:

How many 6-sided polygons are on the clown?

Q9:

How many sides does the shape have?

Q10:

True or false? A hexagon has fewer sides than an octagon.

• A true
• B false

Q11:

How many 10-sided polygons are on the clown?

Q12:

How many 5-sided polygons are on the clown?

Q13:

William made a pentagon using 5 toothpicks. He now wants to change the pentagon into a hexagon. How many more toothpicks does he need?

Q14:

Peter made a pentagon using 5 toothpicks. He now wants to change the pentagon into an octagon. How many more toothpicks does he need?

• A 4
• B 2
• C 5
• D 3
• E 8

Q15:

Sameh made a triangle using 3 toothpicks. He now wants to change the triangle into an octagon. How many more toothpicks does he need?

Q16:

I want to join two vertices in this shape with a straight line so I create two new polygons which have the same number of sides. Which vertices could I join?

• A
• B
• C
• D