### Home > ACC7 > Chapter cc39 > Lesson cc39.1.4 > Problem 9-45

9-45.

Δ *ABC*is similar to Δ*DEF*. Homework Help ✎Find the scale factor from Δ

*ABC*to Δ*DEF*.Find

*x.*Find

*y.*

Find the scale factor between two given similar sides for the two shapes.

The scale factor is 5.

Divide the side corresponding to side *x* by the scale factor.

Multiply the matching side by the scale factor.