To calculate the area of a rectangle you multiply the length by the width. A right-angled triangle is like half a rectangle. So to calculate the area of a triangle, you can work out the area of the ...

A garden is in the shape of a rectangle measuring \(16.3m\) by \(12.4m\). The gardener marks out the two diagonals and decides to sow grass seeds on one of the four triangles formed by the ...