A line runs rightward from point A through point P to point B. A line runs upward from point P to point N. A line slopes upward to the right from point P to point D. A line slopes upward to the left from point P to point C.
In the diagram,
is the perpendicular bisector of
and is also the angle bisector of ∠
. If m∠
= x, which quantity is equal to sin∠
