The side of a rhombus is 26 m and length of one of its diagonals is 20 m. The area of the rhombus is?
Choose the correct choice from the following answers
A) 488 B) 429 C) 418 D) 480 E) 410

Rationale: 262 – 102 = 242 d 1 = 20 d 2 = 48 1 / 2 * 20 * 48 = 480 answer : d
Answer: D