Question 101972
The sum is 180 degrees

{{{sum=A+B+C}}}

given:
{{{A = B}}}
{{{C>A}}}  and {{{C>B}}} and difference between them is {{{60 degrees}}}}

so we can write:

{{{A + B + C = 180}}}

since {{{A=B}}}, it will be

{{{2A + C = 180}}}

since C is 60 degres greater then A we can write

{{{2A + (A + 60) = 180}}}
{{{ 3A= 120}}}
{{{A = 40}}}

=>{{{ B = 40}}}

=>{{{ C = 100}}}