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Jessica has a circular birdbath in her backyard with a radius of 1.25 feet. She wants to place a decorated border around the circumference of the birdbath if the border costs 3.60 per foot how much will the border for the birdbath cost.

Respuesta :

Answer:

The total cost is 28.26.

Step-by-step explanation:

The radius of the birdbath is 1.25 feet.

The cost per foot is 3.6 .

The formula for perimeter of circle is given by,

= 2πR , where R is the radius of circle.

Inserting the above value of radius in the equation above,

circumference = 2(π)(1.25) = 2(3.14)(1.25) = 7.85 [tex]ft^{2}[/tex]

Thus the total cost is,

= (7.85)(3.6) = 28.26