The area of a triangle will be when a = 1m, b = 2m, c = 3m, a, b, c being lengths of respective sides.  Pick:
A) 2 sq m
B) 18 sq m
C) 3 sq m
D) 12 sq m
E) 15 sq m
Explanation:   Area S=(a+b+c)/2   S = (1 + 2 + 3)/2= 
<gadget id="calculator">(1 + 2 + 3)/2</gadget>
<output>3</output>
3 sq m.   Answer : 3 sq m
<result>C</result>
The area of a triangle will be when a = 1m, b = 2m, c = 3m, a, b, c being lengths of respective sides.