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11.01 Properties of shapes

Lesson

Are you ready?

Can you recall the names of common 2D shapes?

What is the name of the shape in the picture below?

  1. Triangle

    A

    Rectangle

    B

    Triangle

    A

    Rectangle

    B

Learn

This video will show you how to work out the name of a 2D shape based on its properties. 

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Question 1

Which of the following shapes are rectangles? Choose all correct answers.

  1. A

    B

    C

    D

    A

    B

    C

    D

 

Learn

This video will look at the properties of some 3D shapes including prisms and pyramids. 

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Question 2

Here is a square pyramid:

  1. How many faces does it have?

  2. How many vertices does it have?

  3. How many edges does it have?

 

Remember!

The features of 2D shapes help us know which shape we are looking at, such as:

  • the number of sides, including any that are equal or parallel
  • the number of angles, as well as any right angles.

The features of 3D shapes include:

  • the number of faces, and the shape of each face
  • the number of edges
  • the number of vertices
  • the shape of the base they have (for pyramids).

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