Question

1. $overline{xy}$ is dilated by a scale - factor of 2 to form $overline{xy}$. $overline{xy}$ measures 21. what is the measure of $overline{xy}$?

Explanation:

Step1: Recall dilation formula

Length of dilated segment = scale - factor×original length

Step2: Substitute values

$X'Y'=2\times21$

Answer:

42