Question

The perimeter of a floor a room is 36m. What is the area of four walls of the room, if its height is 6m?

A 256 m² Correct Answer Incorrect Answer
B 216 m² Correct Answer Incorrect Answer
C 196 m² Correct Answer Incorrect Answer
D 324 m² Correct Answer Incorrect Answer
E None of these Correct Answer Incorrect Answer

Solution

Perimeter = 2(l + b) = 36m and height = 6m Area of 4 walls = 2(l + b) × h  = (36 × 6) = 216 m² 

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