In triangle A three-sided polygon. PQR,angle Q >angle R and M is a pointpoint A location in a plane or in space, having no dimensions. on lineline A straight set of points that extends into infinity in both directions. QR,such that PM is the bisector of angle angle The union of two rays with a common endpoint, called the vertex. QPR,if the perpendicularperpendicular Two lines are perpendicular if the angle between them is . from PonQR meets QR at N,then prove that angleangle The union of two rays with a common endpoint, called the vertex. MPN is equal to halfhalf Either of the two quantities or pieces created when something is divided into two equal pieces. of (angle Q-angle R)