Well the area of a circle is pi × r^2
Your given radius is 12ft meaning tour area of the entire circle would be 3.14×(12)^2. When simplified, this is
3.14 × 144
452.16ft^2
However you only have 3/4 or .75 of that circle so you multiply the entire area by .75
452.16 × .75
339.12ft^2
Hope this helps!
