Question

The 4 angles of a quadrilateral are 2(x+10),(x+30),(x+30),2x
Find all four angles

Answer 1

2x+20+x+30+x+30+2x=360

6x+80=360

6x=360-80

6x=280

x=280÷6

x=46.6

2 (46.6+10)=2 (56.6)=113.2

46.6+30=76.6

46.6+30=76.6

2×46.6=93.2