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34 votes
15. The floor plan of the community center is shown below. The entire floor 1 point of the community center, including the new wing, needs to be tiled. How many square feet of tile is needed? New wing 20 feet 40 feet 60 feet 40 feet 0 280 square feet O 800 square feet O 3,200 square feet 4,800 square feet

15. The floor plan of the community center is shown below. The entire floor 1 point-example-1
User Michael Bowersox
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1 Answer

23 votes
23 votes

To find how many square feet of tile is needed we need to calculate the area of the floor, as you can see, the total surface of the floor is formed by two rectangles, then the total area would be the sum of the areas of them, the area of a rectangle can be calculated by means of the formula:


\begin{gathered} A=l* w \\ \end{gathered}

Where l is the length and w is the width.

Now, let's calculate the area of the new wing:


A=20*40=800

And the area of the left rectangle:


A=60*40=2400

By summing up these areas we get the area of the whole floor:

A=800+2400 = 3200

Then, we need 3200 square feet of tile.

User Pablo Burgos
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