



 
Hi Carl, Let's start by looking at the floor. The dimensions of the model are 50 cm by 38 cm and 1 cm in the model represents 2.5 m in the actual building. Thus the floor of the building is
Hence the area of the floor of the building is
What you should notice here is that the area of the floor of the building is 2.5^{2} times the area of the floor of the model. (The units change from square centimeters to square metres also.) Find the areas of the four walls and the ceiling of the model in square centimeters and multiply each by 2.5^{2} to calculate the corresponding areas for the building. How does the volume of the building in square metres compare to the volume of the model in square centimeters? Harley  


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