In the diagram, if angle PQR = \(58^\circ\), what is the measure of angle PMN?
First, its good to know that triangle PRQ and MNP are similar
Angle PQR=RPQ are 58deg
Since PRQ and MNP are similar, both angles RPQ and NPM are 58deg
Since this is an isosceles triangle...
58deg+2(anglePMN)=180
So we get...
2(anglePMN) = 122
Angle PMN = 61 degrees