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Choose the rule a triangle problem needs

Question 1 of 8

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The measurements of a surveyed triangular habitat plot are recorded in triangle \(PQR\)

Side \(p\) is segment \(QR\) opposite angle \(P\); side \(q\) is segment \(PR\) opposite angle \(Q\); side \(r\) is segment \(PQ\) opposite angle \(R\). Each angle is at the vertex with the same capital letter

Side \(p\) (\(QR\)) is 78 m

Side \(q\) (\(PR\)) is 78 m

Angle \(R\) at vertex \(R\) is \(106^{\circ}\)

The two stated sides meet at vertex \(R\)

The required quantity is the length of side \(r\) (\(PQ\))