Answer:
first one
Step-by-step explanation:
hope this helped!
Quadrilateral
No sides are parallel so it's not a trapezoid
x= 4
-8-x= x-4x
-8 = -3x+x
-8 = -2x
x= 8/2
x = 4
A=πr2=π·82≈201.06193ft²