The given information about the circular flower bed is:
The diameter is 5 feet:
[tex]d=5ft[/tex]And we need to find the perimeter of this circle because he wants to put bricks around the border.
The formula to calculate the perimeter of a circle is:
[tex]P=\pi\times d[/tex]where π=3.1416 and d is the diameter d=5ft.
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