Question 147595
with the trapezoid resting on the longest side


the longest parallel side is 12 inches (19-7) longer than the shortest side
__ this means it "sticks out" 6 inches beyond the shortest side on both ends


two altitudes drawn from the ends of the shortest side will divide the trapezoid into three sections


two of the sections are right triangles with a base of 6 and a hypotenuse of 10
__ the height of the triangles is the altitude of the trapezoid (think 3-4-5)


the 3rd section is a rectangle with width 7 and the same height as the triangles (and the trapezoid)