Answer:

Step-by-step explanation:

Let one angle be x

Therefore x + 10 + x + 20 + x+30+x = 180

3x = 180 - 60 .3 x = 120 x = 40

Answer:

Quadrilateral:

x+10,x+20,x+30,x+40 are the angles

Sum of the angles = 4x+100 = 360

4x=260

x=65

angles are, 75,85,95 and 105 degrees