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Geometry 14 Online
OpenStudy (anonymous):

Help!! Find s

OpenStudy (anonymous):

k

OpenStudy (anonymous):

|dw:1434719426252:dw|

hartnn (hartnn):

do you know about sine rule in triangles?

OpenStudy (anonymous):

No is that where you cross multiply? @hartnn

hartnn (hartnn):

have a look! https://www.mathsisfun.com/algebra/trig-sine-law.html

hartnn (hartnn):

|dw:1434719983876:dw| \(\Large \dfrac{s}{\sin S} = \dfrac{t}{\sin T}\) and onl the value of s is unknown!

OpenStudy (anonymous):

\[s/\sin (20) = 20/\sin (100)\]

OpenStudy (anonymous):

@hartnn is that correct?

hartnn (hartnn):

yes! now just calculate the values..

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