Question

Triangle rst is dilated by a scale factor of 5 to form triangle r's't'. side r's' measures 40. what is the measure of side rs?

Answer 1

Explanation:

We know that r's't' was formed by a scale factor of 5.

This means rst was multiplied by 5 to create r's't'.

Dividing the sides of r's't' by 5 will give us the sides of the

pre-image. If r's' = 40 - dividing 40 by 5 = 8.

So rs is 8.

Answer 2

Answer: 8

Explanation:

We know that scale factor = (image)/(preimage).

Substituting in what we have,

`5=(R'S')/(RS)\\\\5=(40)/(RS)\\\\RS=\boxed{8}`