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Year 2 Shapes - Properties of 2D Shapes
The way to see lines of symmetry is to imagine folding the shape into two matching halves - just like when you make a paper aeroplane.

Year 2 Shapes - Properties of 2D Shapes

Learn 2D shapes by spotting straight sides, curved edges and corners. Name circles, triangles and squares, then describe them clearly using sides and vertices.

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Fascinating Fact:

Straight or curved. Circles have one curved edge and no corners. Squares have straight sides.

In KS1 Maths, children describe 2D shapes by talking about sides and corners (called vertices). They learn to compare shapes, spot curved edges, and explain similarities and differences.

  • Side: A straight line that makes the outline of a 2D shape.
  • Vertex (corner): The point where two sides meet. More than one is vertices.
  • Curved edge: A rounded part of a shape’s outline, like the edge of a circle.

Try a quick practice: open the Properties of 2D Shapes game to rehearse sides, corners and curved edges.

What are the properties of 2D shapes for KS1?

Properties are facts about shapes, such as the number of sides and vertices, and whether the outline has straight sides, curved edges, or both.

Is a circle a 2D shape and does it have corners?

Yes, a circle is a 2D shape. It has one curved edge and no corners (no vertices) because there are no sides meeting.

How do I explain squares and rectangles to children?

Both have four straight sides and four corners. A square has all sides equal; a rectangle has opposite sides equal. Every square is a rectangle.

Question 1
7
4
8
2
From corner to corner, through the middle vertically and horizontally
Question 2
2
6
4
3
From each point to its opposite straight side
Question 3
3
9
4
1
Only equilateral triangles have three lines of symmetry
Question 4
2
1
4
5
There is only one place this shape could be folded exactly in half – right down the middle
Question 5
2
6
5
4
Try to picture where you could fold the shape exactly in half
Question 6
2
4
0
4
The shape can’t be folded in half exactly at all
Question 7
1
3
4
2
The shape could be folded exactly in half from left to right or top to bottom
Question 8
It doesn’t have any
It only has one
It has four
Its lines of symmetry go on for ever
Circles have infinite lines of symmetry – you can fold them exactly in half all the way around!
Question 9
1
2
4
5
There is only one place where this shape could be folded exactly in half
Question 10
2
4
6
8
This shape doesn’t have lines of symmetry from corner to corner like the square
Author:  Angela Smith (Primary School Teacher & KS1 Quiz Writer)

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