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11 cards from this deck
Solving triangles when the Sine Rule cannot be used
a2=b2+c2−2bccosAa^2 = b^2 + c^2 - 2bc \cos Aa2=b2+c2−2bccosA
b2=c2+a2−2cacosBb^2 = c^2 + a^2 - 2ca \cos Bb2=c2+a2−2cacosB
c2=a2+b2−2abcosCc^2 = a^2 + b^2 - 2ab \cos Cc2=a2+b2−2abcosC
Two sides and the included angle are given
All three sides are given
The angle between two known sides
Try Sine Rule first, use Cosine Rule when Sine Rule fails
Angle between 90° and 180° (obtuse angle)
Degree mode
All three sides and one angle in a triangle
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