One side of a rectangular field is 15 m and one of its diagonals is 17 m. Find the area of the field. Choose the correct choice from the following:  A) 120  B) 147  C) 251  D) 451  E) 258

Rationale: "other side = ( ( 17 ) 2 - ( 15 ) 2 ) ( 1 / 2 ) = ( 289 - 225 ) ( 1 / 2 ) = ( 64 ) ( 1 / 2 ) = 8 m . area = ( 15 x 8 ) m 2 = 120 m 2 . ans : a"
Answer: A