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Brut [27]
3 years ago
15

A toy train set includes a train station building which is a scale model of a real building. The area of

Mathematics
1 answer:
iragen [17]3 years ago
6 0

Answer:

20

Step-by-step explanation:

The area of the front side of the toy model is 1\ \text{ft}^2

The area of the real building's front side is 400\ \text{ft}^2

So

1\ \text{ft}^2 of the toy model is equivalent to 400\ \text{ft}^2 of the real building.

Area scale factor is given by k^2, where k is the scale factor of the sides.

So,

\dfrac{400}{1}=k^2\\\Rightarrow k=\sqrt{400}\\\Rightarrow k=20

Hence, the scale factor is 20.

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4 years ago
What number is composed of 4 thousands +7 hundreds + 16 tens + 9 ones
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Andru [333]
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