Question

Please help faaaaaaast

Answer 1

Answer:

Step-1 find find the missing angle

let the missing angle be y

y+120=180

y=180-120

y=60

Step-2 the sum of all angles of a quadrilateral is 360 then

x+2x+x+20+60=360

4x+80=360

4x=360-80

x=280/4

x=70

Thanks