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At ExploreLearning, we celebrate the day with the Circumference and Area of Circles Gizmo. In this Gizmo, students can set the radius of a circle and then use the provided arc length tool to measure the circumference. Students will see that the ratio of the circumference to the diameter is always a bit over three, or pi to be precise.
DA: 15 PA: 56 MOZ Rank: 19