Question

Think of a trapezoid with b1 and b2 as the length of the bases, h as the length of the altitude, and A as the area. Find the missing parts.

b1  b2  h   A
6     x   2   18

Answer 1

Area = 1/2 x (sum of bases) x height
18 = 1/2 x (6 + b2) x 2
b2 = 12.