Q1 - Math - Basic Shapes, Composing and Decomposing Shapes

Choose the correct number of sides and corners.

Groups:

(a) Triangle

,

(b) Square

,

(c) Rectangle

• Has 3 corners

• Has the same number of sides as a rectangle

• Has 2 longer sides and 2 shorter sides.

• Has 4 sides and 4 corners

• Has 4 equal sides and 4 corners

• Has 3 sides

How many equal sides does a square have?

• 4

• 5

• 3

I have 3 sides and 3 corners. What shape am I?

• rectangle

• triangle

• square

What shape can we make from this?

• 
• 

What shape can we make from this?

• 
• 

This means putting together different shapes to form another shape.

• composing a shape

• decomposing a shape

This means dividing or partitioning the shape into different shapes.

• composing a shape

• decomposing a shape

Can you decompose a rectangle into two squares?

• Yes

• No

What ways can you decompose a square? (select all answers)

• 4 squares

• 2 rectangles

• 4 triangles

Can you decompose the triangle into 4 triangles?

• Yes

• No