1
Q
c squared=
A
a squared + b squared -2abCosC
2
Q
b squared=
A
a squared + c squared - 2acCosB
3
Q
a squared=
A
b squared + c squared - 2bcCosA
4
Q
CosA=
A
b squared + c squared - a squared/2bc
5
Q
CosB=
A
a squared + c squared - b squared/2ac
