How do I find the unknowns in the graph below and I need to quote my answers to 4 significant figures?

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![Find the unknowns in the graph below. Quote your answers to 4 significant http://figures.](https://useruploads.socratic.org/mtknpgYXToC2gUXQ7Chg_Screen%20Shot%202018-05-02%20at%2012.24.43+pm.png)

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Answer 1 · 2018-05-02T03:15:27

Please see the explanation.

#/_B=90-71.57=18.43^@#

#tan18.43=s/3#

#s=3*tan18.43=0.9997#

#h=sqrt(3^2+0.9997^2)=3.162#