Quadrilaterals
Maths: Year 3 & 4 National Curriculum, topic 7.1.3
Quadrilaterals
Angles in a quadrilateral (a 4 sided shape) add up to 360°.
Quadrilaterals
- A quadrilateral is any shape that has 4 sides.
- We give names to quadrilaterals that have special properties.
Rectangle
- A rectangle has four right angles.
- Its diagonals are the same length.
- It has two lines of symmetry.
Square
- A square is a rectangle with sides all the same length.
- It has four lines of symmetry.
Parallelogram
- A parallelogram has two pairs of parallel sides which are the same length.
- It has two pairs of equal angles which are opposite each other.
- It has no lines of symmetry.
Rhombus
- A rhombus is a parallelogram with all sides the same length.
- It has two lines of symmetry.
Kite
- The top two sides are the same length.
- The bottom two sides are the same length.
- There is only one line of symmetry.
- Its diagonals cross at right angles.
- The angles on each side are equal.
General trapezium
- A general trapezium has one pair of parallel sides.
- It has no lines of symmetry.
Isosceles trapezium
- A trapezium has one pair of parallel sides.
- An isosceles trapezium has sloping sides the same length and has one line of reflectional symmetry.
Test yourself on Quadrilaterals
What type of shape is this?
What type of shape is this?
What type of shape is this?
What type of shape is this?
How many lines of symmetry does a rhombus have?