Mark B. answered • 11/03/18
Tutor
New to Wyzant
PhD Candidate and Algebra I Tutor with 20 Years of Experience
Hello Buddy,
You can obtain the diameter of a circle in the following way:
D = 2 * r Where D equals the diameter, and r equals radius.
With the information given in our problem then, the following applies:
D = 2 * 20
D = 40 inches.
I hope this assists and that you have a great weekend. Please let me know if you need any further assistance or have questions regarding my solution. Best!
Buddy L.
Even if the circumference is 125.6?
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11/03/18
Mark B.
Hello Buddy, Given the circumference, you can still determine the diameter with the following formula: C = pie(D) where C equals circumference, pie equals 3.14m and d is diameter. Given the circumference: 125.6 = 3.14 (D) Now we want to divide both sides of the equation with 3.14 to leave diameter alone, right? 125.6/3.14 = D 40 = D You see you come out with the exact same answer as I provided you above. Please let me know if you need more assistance.
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11/06/18
Buddy L.
Thank you for explaining this to me.11/03/18