Question

An anatomy model of an adult human is 7 inches tall. Most adult humans are between 5 feet and 6 feet tall. What is the approximate scale factor of the model?

Answer 1

9.42857142857 inches = 1 inch

Explanation:

12 inches in a foot

12 × 5.5 = 66

66 / 7 = 9.42857142857

Answer 2

0.106 ( approx )

Explanation:

Given,

The height of human is between 5 feet and 6 feet,

So, the average height of a human =
`(5+6)/(2)`

`=(11)/(2)`

= 5.5 feet,

∵ 1 feet = 12 inches,

Thus, the average height of a human = 12 × 5.5 = 66 inches

Now,

`\text{Scale factor}=\frac{\text{Scaled measure}}{\text{Actual measure}}`

We have,

Scaled measure of the height of a human = 7 inches,

Thus,

`\text{Scale factor}=(7)/(66)\approx 0.106`