Classifying triangles

Maths

Classifying 2-D shapes

What is a triangle with at least two equal sides called?

What is a triangle with three equal sides called?

Would it be possible to draw a scalene triangle with more than one obtuse angle?

The sum of all the angles of a triangle is:

Zaki and Connor are looking at the diagram on the right. Who do you agree with? Why?

I am thinking of a triangle which have the following properties: no lines of symmetry and has one right angle. Which triangle am I thinking of?

Decide if the statements are always true, sometimes or never true: All quadrilaterals have 4 lines of symmetry.

Decide if the statements are always true, sometimes or never true: The number of lines of symmetry a polygon has is more than its number of sides.

Decide if the statements are always true, sometimes or never true: A regular polygon has as many lines of symmetry as it does sides.

Decide if the statements are always true, sometimes or never true: The number of lines of symmetry a polygon has is the same as its order of rotational symmetry.

How many lines of symmetry does a parallelogram have?

How many lines of symmetry does the shape below have?

This lesson will be removed by end of Summer Term 2025.

Classifying triangles

Lesson outcome

This lesson will be removed by end of Summer Term 2025.