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Learn how the number Pi allows us to relate the radius, diameter, and circumference of a circle.

Learn the relationship between the radius, diameter, and circumference of a circle.

Well, you might do something like maybe take a piece of string, the length of this diameter, and see how many times can you fit it around this circumference. So let's see, you could probably go about, that …

Practice finding the radius and diameter of a circle using both vocabulary and visuals.

Circles are this very fundamental thing in the universe, and you take the ratio of the circumference and the diameter, you get this magical and mystical number that we see that keeps popping up in …

Khan Academy ... Khan Academy

Want a review of circle vocabulary terms (like pi, radius, and diameter)? Check out this article or this video. Want to learn more about finding area of circles? Check out this video.

Lerne wie die Zahl Pi es uns ermöglicht, den Radius (Halbmesser) und Durchmesser auf den Umfang eines Kreises zu beziehen.

Learn the relationship between the radius, diameter, and circumference of a circle.