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OpenStudy (anonymous):
The circumference of the bike tire above is 84.152 inches. What is the radius of the bike tire? (Use 3.14 for .) A. 13.4 in B. 42.08 in C. 26.8 in D. 264.24 in
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OpenStudy (isaiah.feynman):
Smh
OpenStudy (kainui):
So what is pi? It's not 3.14... that's just the number pi happens to have. Pi is the ratio of a circle's circumference to its diameter. pi=C/d and what's diamter? Just twice the radius right? d=2r plug these in and you get: pi=C/(2r) plug in the value of the circumference you have and the value of pi they want you to use (3.14) and solve for your radius, "r".
OpenStudy (anonymous):
I'm still confused x.x
OpenStudy (isaiah.feynman):
Oh my Lord.
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