A house plan shows a scale of 1:25. If the rectangular lounge room of the house is to measure 4 metres by 6 metres, what will the area of the lounge room be on the plan?

  1. 👍
  2. 👎
  3. 👁
  1. The model had measurement of
    4/25 m by 6/25m
    = .16 m by .24 m
    = 16 cm by 24 cm

    area = (16)(24) cm^2
    = 384 cm^2

    area of actual room
    = 400 cm by 600 cm
    area = 240000 cm^2
    but areas are proportional to the square of the sides, so divide by 25^2 or 625
    to get 384 cm^2

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Algebra

    To make an enclosure for chickens, a rectangular area will be fenced next to a house. Only 3 sides will need to be fenced. There is 120 ft. of fencing material. a. What quadratic function represents the area of the rectangular

  2. math

    Brett made a scale drawing of a rectangular room in his house. The actual length of the room is 12 4/5 ft. The scale used to make the drawing was 1/4 in.=1 ft. What is the length, in inches, of the room on the drawing?

  3. math

    If the perimeter of a rectangular house is 44 yards, and the length is 36 feet, what is the width of the house in yards?

  4. Geometry

    A grid shows the positions of a subway stop and your house. The subway stop is located at (-5,2) and your house is located at (-9,9). What is the distance, to the nearest tenth unit between your house and the stop?

  1. MOMETRIX TEAS 6 practice

    On a floor plan drawn at a scale of 1:100, the area of a rectangular room is 30cm^2. What is the actual area of the room? Answer: 30 m^2 Just need help understanding the concept and putting it all together. I can't grasp it very

  2. Algebra

    John is thinking about buying a house for $179,000. The table below shows the projected value of two different houses for three years. Number of years 1 2 3 House 1 (value in dollars) 186,160 193,606.40 201,350.66 House 2 (value

  3. Algebra

    A family is building a new house on a rectangular lot of land. The lot measures 7x by 11x and the house will be 2x by 3x. How much land will be left for their yard after the house is built? (1 point)

  4. math

    A architect is designing a house. The scale on the plan is 1 inch=6 feet. If the house is to have a length of 90 feet and a width of 30 feet, how long will the line representing the house's length on the blue print

  1. Math

    The floor areas of a living room on a house plan measures 3 1/2 inches by 4 5/8 inches. If the scale is 1/4 inch = 1 foot, find the length of the longest side of room in feet. How do I start this problem?

  2. Math

    In a plan of a house the scale of the length is shown as 1:50, calculate the length of a room which is 8.5 cm on the plan

  3. math

    A house plan is drawn to scale of 1cm to 2m what is the length of a window 2.5cm long on the plan

  4. Pre- algebra

    Giovanni went to Los Angeles, California for the summer to visit his cousins. He used a map of bus routes to get from the airport to his cousin’s house. The distance from the airport to his cousin’s house is 56 km. On his map,

You can view more similar questions or ask a new question.