In a triangle, one side is 6 Cm and another side is 9 Cm. which of the following can be the perimeter of the triangle?
The third side of the triangle is larger than 3 (The difference between the other two) and should be smaller than 15 ( The sum of the other two).
The perimeter is between (6+9+3 = 18) and (6+9+15 = 30). The only answer that is in this range is B.
The best answer is B.