July 19, 2015
There are several types of GMAT quadrilaterals, or four-sided figures, that you will need to know when taking the GMAT. We will look at the area perimeter and other properties of each figure individually.
Trapezoid: A quadrilateral with one pair of parallel sides
Area = ((b1+b2)/2)×h
Perimeter = the sum of all sides (they can all be different lengths so there is no shortcut.