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General
Easy

Question

Find the Area of four walls of a room 13 m long and 8 m wide and 5 m high

  1. 200 cm²    
  2. 250 m²    
  3. 210 m²    
  4. 230 m²    

The correct answer is: 210 m²


    To find the area of four walls of a room.
    It is given that length, breadth and height of a room are 13 m, 8 m and 5 m respectively.
    Area of four walls of the room is: 2h(l+b) = 2 x 5(13 + 8) = 210 m²

    Therefore, the area of four walls of a room is 210 m².

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