Subjects geometry

Circle Radius Cf6917

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1. **State the problem:** We need to find the radius $r$ of a circle given its circumference $C = 69.08$ feet. 2. **Formula used:** The circumference of a circle is related to its radius by the formula: $$C = 2 \pi r$$ 3. **Rearrange the formula to solve for $r$:** $$r = \frac{C}{2 \pi}$$ 4. **Substitute the given values:** Given $C = 69.08$ feet and $\pi = 3.14$, substitute into the formula: $$r = \frac{69.08}{2 \times 3.14}$$ 5. **Calculate the denominator:** $$2 \times 3.14 = 6.28$$ 6. **Simplify the fraction:** $$r = \frac{69.08}{6.28}$$ 7. **Perform the division:** $$r = 11$$ **Final answer:** The radius $r$ of the circle is $11$ feet.