Question

If $\overline{PQ}\cong \overline{QR}$ and $PS=20$, what is $RS$?

• A. $10$
• B. $20$
• C. $30$
• D. $40$

Answer 1

The correct option is B $20$

Given: $SQ$ is the perpendicular bisector of $\overline{PQ}\cong \overline{QR}$
Therefore, we use the perpendicular bisector theorem to conclude that $PS=RS$
So, $RS=20$.