Some question: Find the area of the quadrilateral of one of its diagonals is 20 cm and its off sets 9 cm and 6 cm?
Options:
(A) 128
(B) 150
(C) 882
(D) 272
(E) 121
Some stream of consciousness:
1/2 * 20(9 + 6) = 150 cm2 The answer: (B).