Trevor makes a scale drawing of a doghouse that he is building. The scale he uses is 1in : 0.4 ft. What is the actual area of the floor of the doghouse if the dimensions on the scale drawing are 8in. By 10in

First, we get the real dimension of the floor by using the scale in our conversion.

8 in x (0.4 ft / 1 in) = 3.2 ft

10 in x (0.4 ft / 1 in) = 4 ft

We get the area of the floor by multiplying its dimensions such that,

Area of the floor = (3.2 ft) (4 ft) = 12.8 ft²

Thus, the actual area of the floor is equal to 12.8 ft².