Step-by-step explanation:
this is given that the figure is a hexagon
let give a name to the given hexagon be ABCDEF
Angle a + B + C + D = 720 ( Ls sum pro. of hexagon)
3x-20+3x-20+4x+4x+3x-20+3x-20 = 720
3x+3x+3x+3x+4x+4x-20-20-20-20 = 720 (rearranging)
20x - 80 = 720
20x = 720 + 80
x=800/20
x = 40 degrees
3x-20 = 100
4x = 160
I HOPE THAT THIS ANSWER HELPS YOU
