ABC and DEC are right triangles with right angles B and E, respectively. If DE = 3, EC = 9, and BE = 6, find the area of triangle ABC. (Note that the triangle may not be drawn to scale.) A D B E C 75 a) O 2 b) 0 30 c) 0 75 d) O 135 e) O 15 f) O None of these