The diagonal of a rhombus are 25 m and 50 m. Its area is:
Pick one
A) 900
B) 800
C) 700
D) 625
E) 650

Rationale: "area of the rhombus = 1 / 2 d 1 d 2 = ( 1 / 2 ã — 25 ã — 50 ) cm ( power ) 2 = 25 ã — 25 = 625 cm ( power ) 2 answer is d ."
Answer: D