Question

What is the scale factor from a to b

Answer 1

What is the scale factor from $\alpha$ to $\pmb{b}$ ?

Solution.

Example.

Let we have two similar figures:

In this case, The scale factor from $\alpha$ to $\pmb{b}$ is $\pmb{b} / \pmb{a}$ . In other words, if we multiply $\alpha$ by the scale factor $\pmb{b} / \pmb{a}$ we get $\pmb{b}$ .

In the general case, a scale factor is a number which scales, or multiplies, some quantity.

For example, if we have an equation $\alpha = S\dot{b}, S$ is the scale factor.