SOLUTION: Which of the following is the best estimate of the circumference of a circle that has a diameter of 7 feet?
11 ft.
14 ft.
42 ft.
21 ft.
Algebra.Com
Question 297213: Which of the following is the best estimate of the circumference of a circle that has a diameter of 7 feet?
11 ft.
14 ft.
42 ft.
21 ft.
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
circumference=2*pi*r
diameter =2*r
circumference =d*pi
pi is about 3.14
3*7=21
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