Matematika kaa tolong di bantu dong :(​

kaa tolong di bantu dong :(​ [tex] \sqrt{ {17}^{2} - {15}^{2} } = \sqrt{289 - 225} \: \: \: \\ \: \: \: \: \: \: = \sqrt{64} \\ = 8 \\ [/tex] [tex]tan \: \alpha = \frac{15}{8} = 1 \frac{7}{8} \\ [/tex] [answer.2.content]