Key learning points

1. Shapes on coordinate grids do not often have their measurements clearly written.
2. Instead, you are expect to calculate the desired lengths.
3. This may involve Pythagoras' theorem, shape properties or equations of lines for example.

Keywords

• Equation of a straight line - An equation of a line is any equation whose graph forms a straight line. These equations can be written in the form y = mx + c.

Common misconception