Question 47
Let $XZ$ be a diameter of circle $\omega$. Let $Y$ be a point on $XZ$ such that $XY = 7$ and $YZ = 1$. Let $W$ be a point on $\omega$ such that $WY$ is perpendicular to $XZ$. What is the square of the length of the line segment $WY$?
(a) 7
(b) 8
(c) 10
(d) 25
(a) 7
(b) 8
(c) 10
(d) 25