Question

cd is the perpendicular bisector of both xy and st, and cy = 20. find cx.

Explanation:

Step1: Recall property of perpendicular bisector

A perpendicular bisector of a line - segment divides the line - segment into two equal parts. Since $\overline{CD}$ is the perpendicular bisector of $\overline{XY}$, we know that $CX = CY$.

Step2: Identify the value of $CY$

We are given that $CY = 20$.

Answer:

20