Question

Micah is buying gravel for a rock garden that will be edged by a circular metal border. She will use 110 feet of metal edging for the border. What is the area of the garden? Use 3.14 for Pi

The equation C = 2 r is used to determine the circumference of a circle with radius r. Describe how you can substitute and simplify this equation to help solve the problem.

Answer 1

9,498.5 ft²

Explanation:

110 ft = circumference (C)

C=2r

110=2r

110/2=2r/2

55=r

Area of a circle (A) = πr²

Use 3.14 for π

A=3.14(55)²

A=3.14(3025)

A=9,498.5

The area of the garden is 9,498.5 ft²