Respuesta :

Answer:

Well, I'm only in middle school, but I'll Give it A try. Answer: 45 degrees.

Step-by-step explanation:

Well, A triangle makes up 180 degrees in total. So, 180-90 (The angle Given.)= 90. Then, You Have the other 2 angles So 90/2=45 degrees. Which is the answer for both the unknown angles.

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Use S(O/H)C(A/H)T(O/A)
Sin(7/9)=0.701697876
x=0.7