Question

A scale drawing has a scale of 3 in. . 1 ft. What is the scale factor?

Answer 1

the scale factor of that problem would be 3in to every 1ft

Answer 2

The scale factor is 4.

Explanation:

Given,

The scale drawing has a scale of 3 inches : 1 feet,

That is, for 3 inches the measurement is 1 feet

We know that,

1 feet = 12 inches,

⇒ For 3 inches the measurement is 12 inches,

Thus, the scale factor =
`\frac{\text{Final measurement}}{\text{Initial measurement}}`

`=(12)/(3)`

`=4`

Hence, the scale factor is 4.