circumference = [tex]2 \pi r[/tex]
circumference = [tex]2 \pi (1.5)[/tex]
circumference = 9.42 feet
The circumference is 9.42 feet, so we need to get fencing for 10 feet (assuming the fence comes in feet, i.e. you cant buy half a foot)
1 feet = $.075
10 feet = $0.75 x 10 = $7.50
