Decimal: 0.52
percent: 52%
Answer: x=50
Explanation:-
Exterior angles of all polygons add up to 360 degrees.
So, x+20+x+40+2x+2x=360
x+x+2x+2x+20+40=360
6x+60=360
6x=360-60
.:6x=300
x=300/6
x=50
300m because area is Length x width and it's 3x as big as 10 meters it's 30 x 10= 300