Therefore, to calculate the area of a triangle, one should have its base and height measurements. Area of Triangle = ½ * b* h sq units Where, b = base and h = height.

The triangle is coloured purple., The triangle has an area of 72 m². Find the base of the triangle. End of image gallery. Question. The triangle has an area of 24 m².

To calculate the area of a rectangle, you multiply the length by the width. 5cm × 8cm = 40cm² Remember, area is measured in square units, such as square centimetres (cm²) and square metres (m²).