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Quiz: Perimeter and Area

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Number of Questions: 31

Question: 31 -

The length, width, and height of a room are 7 m, 8 m, and 9 m respectively. What is the total area of the walls?

Options:

  1. 255 

  2. 260 

  3. 265 

  4. 270 

    5. Answer:

    270 
    Solution:

    Area of the 4 walls of a room = 2 (Length + Breadth) * Height

    Given that, Length = 7 meters, Width or Breadth = 8 meters and Height = 9 meters

    So, the required area, A = 2 (7 + 8) * 9

    = 2 * 15 * 9

    = 270 sq. m.