Question

find the value of x. ​

Answer 1

Step-by-step explanation:

x°+2x°+(x+20)°+120°=360°

x°+2x°+x°+20°+120°=360°

4x°+140°=360°

4x°=360°-140°

4x°=220°

x=220°/4°

x=55°