Start learning →

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.
Practise this question with Quill — AP Calculus AB →

Keep practising Unit 8B: Volumes of Revolution and Cross-Sections

Browse all Unit 8B: Volumes of Revolution and Cross-Sections questions for AP Calculus AB, or explore more Mathematics topics.

Start a Unit 8B: Volumes of Revolution and Cross-Sections lesson →