A. $\dfrac{F_1}{{sin}\left({β}\right)}=\dfrac{F_2}{{sin}\left({γ}\right)}=\dfrac{F_3}{{sin}\left({α}\right)}$
B. $\dfrac{F_1}{{sin}\left({α}\right)}=\dfrac{F_2}{{sin}\left({β}\right)}=\dfrac{F_3}{{sin}\left({γ}\right)}$
C. $\dfrac{F_1}{{sin}\left({γ}\right)}=\dfrac{F_2}{{sin}\left({α}\right)}=\dfrac{F_3}{{sin}\left({β}\right)}$
D. $\dfrac{F_1}{{sin}\left({β}\right)}{=}\dfrac{F_2}{{sin}\left({α}\right)}=\dfrac{F_3}{{sin}\left({γ}\right)}$
A
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