In the figure, PQr is a semicircle while PQ and Qr are chords. QS is the perpendicular from Q to the diameter PR. What is the expression for QS?

Question 1 Report

QS = PS

\sqrt{S R}

QS =

\sqrt{(P S S R)}

QS = 2

\sqrt{(P S S R)}

QS =

\frac{1}{\sqrt{2}}

\sqrt{(P S S R)}