Calculation of the area of the trapezoid
Trapezoid is a convex quadrilateral with two sides parallel. Often a condition is added to the definition of a trapezoid that the other two sides should not be parallel. Parallel opposite sides are called trapezoid bases, and the other two are called sides. The middle line is a segment connecting the midpoints of the sides. Here are ways to find the area, suitable for all types of trapezoid.
Trapezoid area through bases and height
Area of the trapezoid through the midline and height
Trapezoid area across sides
The area of the trapezoid through the diagonals and the angle between them
Area of the trapezoid through the bases and corners of the base