One side of a rectangular field is 15 m and one of its diagonal is 17 m. Find the area of the field.
Choose the correct choice from the following:
A) 100
B) 120
C) 150
D) 180
E) none

Rationale: solution other side = √ ( 17 ) 2 - ( 15 ) 2 = √ 289 - 225 = √ 64 = 8 m . ∴ area = ( 15 x 8 ) m 2 = 120 m 2 . answer b
Answer: B