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10 questions from this quiz
Two sides & included angle known, no height
Two angles & one side are given
When all three sides are known
Cosine rule
Area = 12absinC\frac{1}{2}ab \sin C21absinC
asinA=bsinB=csinC\frac{a}{\sin A} = \frac{b}{\sin B} = \frac{c}{\sin C}sinAa=sinBb=sinCc
When sinC\sin CsinC gives two possible angle values
Opposite the largest angle
Draw a clear 3D diagram
Leads to accumulation of errors
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