Question

Sarah has built a scale model of a bridge. The real bridge is 56 ft across and 21 ft wide. Sarah's model is 8 in. across and 2.5 in. wide. Is Sarah's model a true model of the bridge? Explain.

Answer 1

Well, we need to find the ratio of it and see if both measurements of the 'scale' model are the same.

Answer 2

But before we do, take in mind we can't divide 56/8 because 56 needs to be converted into inches.

Answer 3

How many inches are there in a foot?

Answer 4

Then if the ratios are same then it is a model

Answer 5

@dsfkhfkjsa

Answer 6

Um, I already said that but yes. Well, there are 12 inches ina foot so let's multiply 56 by 12.

Answer 7

56 • 12 = 672

Now, divide 672 by 8:

672/8 = 84

Answer 8

So, we have 84 which means that if we multiply 84 by 2.5 it should equal however many inches there are in 21, if it is to be a true scale model

Answer 9

21 • 12 = 252

2.5 • 84 = 210

Answer 10

It is not equal, so no, it is not a true scale model.

Answer 11

Chibi x.x i need u

Answer 12

Lol :3

Answer 13

I'm learning this in Geometry ;P