Area of a Trapezium | Brilliant Math & Science Wiki
The area of a trapezium is computed with the following formula: text {Area}=frac {1} {2} × text {Sum of parallel sides} × text {Distance between them}. Area = 21 ×Sum of parallel sides×Distance between them. The parallel sides are called the bases of the trapezium. Let b_1 b1 and b_2 b2 be the lengths of these bases.