A triangle is a closed shape with three sides and three vertices. The general formula to calculate the area of a triangle is half of the product of its base and height. Let’s explore the topic ...

A triangle is always half the area of a rectangle with the same height and width. To calculate the area of a triangle, multiply the height by the width (this is also known as the 'base') then ...

Save guides, add subjects and pick up where you left off with your BBC account. To calculate the area of a rectangle you multiply the length by the width. A right-angled triangle is like half a ...