What is the circumference of a circle having radius $7\text{cm}$?

Step-by-step solution

1. Circumference of a circle is $C=2\pi r$.
2. Substitute $r=7\text{cm}$: $C=2\pi \times 7$.
3. Simplify to get $C=14\pi \text{cm}$.

Concept tested: Circumference of a circle

Published 21 August 2026 · How this solution was prepared and checked

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