Question

please solve these questions

Answer 1

Let the sum of angles be 4x+5x+6x =180° (sum of all angles of a triangle =180°
this becomes 15x=180°
So x =180\15=12°
Now 4x=4*12=48°
5x=5*12=60°
6x=6*12=72°
you can check 48°+60°+72°=180°