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

**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
- Bquadrilateral
- 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