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12 cards from this deck
Any triangle (not just right-angled)
Two angles and one side (AASAASAAS or ASAASAASA)
Two sides and non-included angle (SSASSASSA)
asinA=bsinB=csinC\frac{a}{\sin A} = \frac{b}{\sin B} = \frac{c}{\sin C}sinAa=sinBb=sinCc
sinAa=sinBb=sinCc\frac{\sin A}{a} = \frac{\sin B}{b} = \frac{\sin C}{c}asinA=bsinB=csinC
Lengths of the sides of the triangle
Angles opposite the sides aaa, bbb, ccc
When you have two sides and the included angle (SASSASSAS)
When you have all three side lengths (SSSSSSSSS)
a2=b2+c2−2bccosAa^2 = b^2 + c^2 - 2bc \cos Aa2=b2+c2−2bccosA
cosA=b2+c2−a22bc\cos A = \frac{b^2 + c^2 - a^2}{2bc}cosA=2bcb2+c2−a2
The angle between two given sides
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