Hour of Math · SS2 · Unit SSGM9

Two Triangles or One — The Ambiguous Case, and Area = ½ab sin C

Use the swinging-stick idea to decide whether an SSA problem gives zero, one, or two triangles, find and test both solutions in an ambiguous case, derive $\text{Area} = \frac{1}{2}ab\sin C$ from the altitude $h = b\sin C$, and use it to find an area or an enclosed angle.

Loading lesson…