The area of a triangle will be when a = 1m, b = 2m, c = 7m, a, b, c being lengths of respective sides?	Choose the correct choice: A) 3 B) 6 C) 5 D) 9 E) 1

Rationale: s = ( 1 + 2 + 7 ) / 2 = 5 answer : c
Answer: C