What is the formula to find area of trapezium

The area of a trapezium = 1/2×(a+b)×d Where,a & b are the parallel sides of the trapezium. d is the distance between the parallel sides.

Area of trapezium = (a+b)/2 x h. this formula is used to find the area of a tapezium.

A=(a+b)*h/2 Where a is the long base b is the short base h is the altitude (perpendicular height)

Area of trapezium= 1/2 (sum of parallel sides)x height

Area of trapezium = 1/2 (sum of lengths of parallel sides) x height