The bearing of Q from P is 150°. If PQ = QR, find the bearing of R from P.

Here are the step-by-step solutions for problems 18 and 19:

18. The bearing of Q from P is $150^\circ$. If $PQ = QR$, find the bearing of R from P.

Step 1: Draw a diagram.

• Draw point P and a North line from P.
• The bearing of Q from P is $150^\circ$. This means the angle measured clockwise from the North line at P to the line segment PQ is $150^\circ$.
• Draw a North line from Q, parallel to the North line from P.
• The interior angle between the South line at Q and the line segment QP is an alternate interior angle to the angle between the