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Year 2 Shapes - Describing 2D Shapes
Squares are one of the most common 2-D shapes. Triangles, circles and oblongs are also 2-D shapes.

Year 2 Shapes - Describing 2D Shapes

Learn the names and properties of 2D shapes. Count sides and vertices, spot right angles, and describe shapes like triangles, pentagons and hexagons using clear, simple rules.

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(quiz starts below)

Fascinating Fact:

Pentagon and hexagon. Pentagon has 5 sides. Hexagon has 6 sides. Count slowly and point.

In KS1 Maths, pupils describe 2D shapes by counting sides and vertices (corners) and spotting square corners called right angles. Clear language helps children compare shapes and explain how they know.

  • Side: A straight edge on a flat (2D) shape.
  • Vertex: A corner where two sides meet. More than one vertex = vertices.
  • Polygon: A 2D shape made from straight sides, like triangles, squares, and pentagons.

Try a quick practice: play the 2D Shapes Practice to rehearse naming sides and vertices.

How do I describe a 2D shape in KS1?

Say how many sides and vertices it has, and whether any corners are right angles. You can also mention if sides are equal or if it has curved edges.

What is the difference between a pentagon and a hexagon?

A pentagon has 5 sides and 5 vertices. A hexagon has 6 sides and 6 vertices. Counting the sides tells you which shape it is.

How can children recognise right angles in shapes?

Right angles look like square corners. You can match a corner of paper or a small card square to check if a corner is a right angle.

To see a larger image, click on the picture.
Question 1
A square is a kind of...
sphere
triangle
circle
rectangle
A rectangle has four sides - a square is a kind of rectangle with four equal sides
Question 2
How are rectangles different to squares?
They don't have as many corners
They have 4 sides of different lengths
They have two long and two short sides
They have more sides
Squares have 4 sides of equal length
Question 3
This triangle is called an equilateral triangle because all its sides and angles are..
different lengths
the same colour
made of plastic
the same
Equilateral means equal or the same
Question 4
Which shape has the most corners
They all have the same number of corners
The circle
The triangle
The square
The square has four corners, the triangle has three and the circle has no corners
Question 5
What shape is this clock face?
A rectangle
A circle
A square
A triangle
All four sides are the same length
Question 6
The coloured part of the eye is a...
rectangle
square
triangle
circle
The iris and pupil are both circles
Question 7
This little girl is holding...
a triangle and a circle
a triangle and a square
a circle and a rectangle
a rectangle and a square
A triangle has three straight sides and a circle has one curved side
Question 8
This road sign is a...
triangle
square
oval
oblong
Even though it is tilted, the shape is still a square
Question 9
What shape are the pairs of triangles making?
Oblongs
Circles
Triangles
Squares
Two right-angled triangles pushed together can make a square
Question 10
This pattern is made up from rectangles. Which shape wouldn't fit together as well?
Triangles
Circles
Squares
Cubes
Because circles are curved, they don't fit together at all!
You can find more about this topic by visiting BBC Bitesize - What are 2D shapes?

Author:  Angela Smith (Primary School Teacher & KS1 Quiz Writer)

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