Asked by Howarf

The LAW of COSINES is used to solve oblique triangles in which two sides and the included angle (SAS)are given or three sides (SSS) are given.

For any ∆𝐀𝐁𝐂 with angle measures A, B, C and side lengths a, b, c

STANDARD FORM
a²= b²+c²-2bcCos A
b = a²+c²-2acCos B
c²=a²+b²-2abCos C

Answers

Answered by mathhelper
thanks for that important information, but your second version of the
equation contains a typo, making it incorrect.

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