Question

the segment below is dilated by a scale factor of 2 to form $overline{gh}$. what is the measure of $overline{gh}$? answer attempt 1 out of 2

Explanation:

Step1: Recall dilation formula

When a segment is dilated, the new length $l'$ is given by $l'=k\times l$, where $k$ is the scale - factor and $l$ is the original length.

Step2: Identify values

Here, $k = 2$ and $l=21$.

Step3: Calculate new length

$l'=2\times21 = 42$.

Answer:

42