Mathematics for IGCSE & O level - Mensuration (Section 12 - No. 36)

What is the formula for the area of a trapezium?

1/2 * (a + b) / h

1/2 * (a - b) * h

1/2 * (a + b) * h

a * b * h

The area of a trapezium is 1/2 multiplied by the sum of the parallel sides, multiplied by the height: 1/2 * (a+b) * h.