SOLUTION: what is the radius of a 40'circle?

Question 340795: what is the radius of a 40'circle?
Answer by nyc_function(2741) (Show Source): You can put this solution on YOUR website!
I assume that 40' (or 40 feet) applies to the circumference of the circle since you di dnot point this out in your question.
Use C = 2pir
Let C = 40 and solve for r
Let pi = 3.14

40 = 2(3.14)r
40 = 6.28r
40/6.28 = r
6.4 = r
NOTE: I rounded 6.369 to the nearest tenths to get the radius answer of 6.4 for your circle.
Make sense?

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