Solve a and b

Dear student,

a) 400+450+x=1800850+x=1800x=1800-850=950b) 3x-170+x+400+2x-50=18003x+x+2x+400-220=18006x-180=18006x=1800-180=1620x=16206=270RegardsThe sum of the interior angles of the triangle is 1800
 

  • 0
What are you looking for?