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10 questions from this quiz
Two sides & included angle
All three side lengths
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
AAA is opposite side aaa
4.744.744.74 m
72.97°72.97°72.97°
To find an angle from its cosine value
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