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Circumference - Radius to Equation (Level 1)

This math topic focuses on practicing how to find the circumference of a circle given its radius. It enables students to apply the formula for the circumference of a circle, which is typically \( C = 2\pi r \), where \( C \) is the circumference and \( r \) is the radius. Learners are presented with various circles, each accompanied by multiple-choice answers that represent different equations for the circumference. This includes correctly applying the formula as well as avoiding common misconceptions or calculation errors.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

Circumference - Radius to Equation

Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.


Find the equation that represents the circumference of this circle

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