The dimensions are 15x35 meters

Hey there! Our goal here is to isolate the variable on one side of the equation.

You have to build an equation to find the answer,
angles in a straight line add upto 180°
so your equation would be,
12x+30°=180°
-30 -30
=12x=150°
÷12 ÷12
=x=12.5°
now find the measures of the angles by using 12.5 as x.
angle EAF= 2x
=2×12.5
=25° degrees
angle DAE= 4x
=4×12.5
=50°degrees
angle CAD=6x
=6×12.5
=75°degrees
check,
30+25+50+75=180°degrees
hope this helps.......
If I understand this correctly you can write it as
22
twenty-two, or
20+2
I hope this helps!!! Please mark brainliest if correct!!!