Area of a triangle

You learn to work out the area of a triangle.

How to work it out

  1. Calculate base × perpendicular height.
  2. Divide by 2 because the triangle is half of that rectangle.
6 cm4 cm

A triangle with base 6 cm and height 4 cm. What is the area?

  1. Use the formula: base times height divided by 2.
  2. 6 × 4 = 24.
  3. 24 ÷ 2 = 12.
  4. The area is 12 cm².
Another example

A triangle with base 10 m and height 5 m. What is the area?

  1. Work it out: 10 × 5 = 50.
  2. Divide by 2: 50 ÷ 2 = 25.
  3. The area is 25 m².