Question 1177265
these two lines, {{{p }}}and {{{q}}}, should create a right triangle with one of the angle being {{{CBA}}} and{{{ ACB}}} is the other angle

so,  {{{m}}} ∠ {{{ACB=90-14=76}}}


{{{ drawing( 600, 600, -10, 10, -10, 10, 
circle(3,3,.12),locate(3,3,C),circle(3,3,5),locate(7,8,q),green(line(8,-10,8,10)),
locate(9,7,p),locate(7,7,14), locate(1,1,76),
 graph( 600, 600, -10, 10, -10, 10, x)) }}}