New Enroll in RBI Grade B New Batch - Starts on May 21

    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

    Solution

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

    Practice Next

    Relevant for Exams: