Question 480363
angle(1)+angle(2)=90 degrees
{{{x+(3x-10)=90}}}
{{{x+3x=90+10}}}
{{{4x=100}}}
{{{x=100/4}}}
{{{x=25}}}
angle 1 is {{{3*25-10=65}}}degrees
angle 2 is 25 degrees