Find the area of a trapezoid quiz. This is an interactive online test on finding the area of a trapezoid. Trapezoids have a unique shape hence there is an area of trapezoid formula. Look at the figures in this quiz and apply this formula to find the surface area of each shape. After finding the answer submit it to check the outcome. Download an area of a trapezoid worksheet and get more practice offline. These tests will reinforce student’s skills in finding areas for those 4th, 5th, 6th and 7th grades.