A trapezium or trapezoid is a 2dimensional shape which has 2 parallel sides and 2 non-parallel sides. The 2 parallel sides are called the bases. This Base of Trapezoid Calculator is used to find the trapezium base length with the given Area, another base length and height.
A trapezium with Area 50 m^2, height 10 m and base length 7 m.
Trapezium Base length = (2 x 50 / 10) - 7
= 3 m.