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The Greek letter that represents the ratio of a circle's circumference to its diameter is:
Aα (alpha)
Bβ (beta)
Cπ (pi)
Dσ (sigma)
Answer & Solution
Correct answer: C. π (pi)
π (pi) is the ratio C/D, the circumference of a circle divided by its diameter. It is irrational (~3.14159…) and the same for ALL circles, regardless of size.
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