Question

write an equation that could be used to find the value of y

Answer 1

law of sines or law of cosines

Answer 2

personally i find law of sines easier

Answer 3

\[\frac{a}{\sin A}= \frac{b}{\sin B}= \frac{c}{\sin C}\]

Answer 4

Law of cosines

\[a^2= b^2+c^2 - 2bc \cos A\]
\[b^2= a^2+c^2 - 2bc \cos B\]
\[c^2= a^2+b^2 - 2bc \cos C\]

Answer 5

i suggest memorizing law of sines cause its simple
i suggest being familiar with law of cosines

Answer 6

so it sin 94 degrees/52=sin 72 degrees/y