Question

find the length of $overline{cd}$.

$cd = square$

Explanation:

Step1: Apply the distance formula on a number line

The distance between two points \(x_1\) and \(x_2\) on a number line is \(|x_2 - x_1|\). Here, \(x_1 = 2\) and \(x_2=20\).

Step2: Calculate the difference

\(CD=|20 - 2|\)
Since \(20-2 = 18\) and \(|18|=18\).

Answer:

\(18\)