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Worksheets

Decomposing 2D Shapes

Total questions: 20

Worksheet time: 20mins

Name
Class
Date
1.

What ways can you decompose a square?

a)

4 triangles

b)

1 rectangle

c)

2 trapezoids

2.

How can you decompose a hexagon?

a)

2 triangles, 1 rhombus

b)

5 triangles

c)

2 trapezoids

3.

What shape do I need to put on top to make the trapezoid into a triangle?

a)

triangle

b)

square

c)

pentagon

d)

circle

4.

Is this polygon a trapezoid?

a)

Yes

b)

No

5.

in how many triangles can I decompose this hexagon?

a)

3

b)

5

c)

8

d)

6

6.

Can you use two trapezoids to make a pentagon?

a)

no

b)

yes

7.

What to shapes can I use to compose (make) this shape

a)

Triangle and pentagon

b)

square and a triangle

c)

rhombus and rhombus

d)

triangle and hexagon

8.

Can I use a trapezoid and two rhombus to make this hexagon?

a)

yes

b)

no

c)

sometimes

9.

I am made of two_______

a)

Quadrilaterals

b)

Squares

c)

Triangles

d)

Pentagons

10.

Can I use a trapezoid a rhombus and a triangle to make this shape?

a)

no

b)

yes

c)

maybe

d)

no idea

11.

Can you use a rhombus and a triangle to make a trapezoid?

a)

maybe

b)

yes

c)

no

12.

Which shape can be decomposed(separated) in two trapezoids?

a)
b)
c)
d)
13.

Which shape can be decomposed (separated) in 5 triangles?

a)
b)
c)
d)
14.

If you put two triangles together, what kind of shape you will make?

a)

circle

b)

square

c)

triangle

d)

rhombus

15.

If you put two squares together, what shape you will make?

a)

rectangle

b)

square

c)

trapezoid

d)

rhombus

16.

Roger wants to cut a hexagon into triangles of equal size. For the first triangle, he cuts along the dotted lines. How many triangles of this size can Roger cut from the hexagon?

a)

3

b)

4

c)

8

d)

6

17.

Jesse cuts this figure into two halves, as shown above. Which shape is each half?

a)

Rectangle

b)

Triangle

c)

Square

d)

Circle

18.

What two shapes were used to make the polygon above?

a)

Triangle and Circle

b)

Triangle and Rectangle

c)

Square and Rectangle

d)

Square and Triangle

19.

If the polygon above is cut along the dotted lines, what is one of the new shapes that will be created?

a)

Triangle

b)

Pentagon

c)

Rectangle

d)

Hexagon

20.

David cuts the square in half along the dotted line. What new shapes does David create?

a)

Circles

b)

Rectangles

c)

Squares

d)

Triangles