Classify Quadrilaterals

This activity is about the properties of quadrilaterals.

 

You should know the following words:

 

Bisect: means to cut a line in half

 

Parallel: means having the same gradient

 

Right angle: is a 90-degree angle

 

Diagonal: is a line inside the shape from one corner to an opposite corner

 

In quadrilaterals, look out for sides of equal length, parallel sides, diagonals, equal angles etc.

 

Example

Look at these rhombuses.

 

 

All four sides are equal.

They have two pairs of parallel sides.

Their diagonals bisect at right angles.

They have two pairs of equal angles.

 

Let's have a go at classifying some more quadrilaterals in the questions that follow.

 

Incidentally, did you know that the prefix 'quad' means four? So, a quad bike has four wheels, a quadrangle is a courtyard with four sides and any four-legged animal is a quadruped!