Question 879355
Law of Sines will give you angle A.
{{{sine(90)/9=sin(A)/5}}}
{{{sine(A)=(5/9)*sine(90)}}}
{{{A=arcsin(5/9)}}}
{{{highlight(A=33.75)}}} degrees approximately.


The hypotenuse is c=9 because this is opposite of the right angle of the right triangle. Pythagorean Theorem will give b:
{{{a^2+b^2=c^2}}}
{{{25+b^2=81}}}
{{{b^2=81-25}}}
{{{b^2=56}}}
{{{b=sqrt(7*2*2*2)}}}
{{{highlight(b=2sqrt(14))}}}