Given the circumference 68 n , find the radius measurement. If needed, round to the nearest tenth. 34 12.8 22 8.2

To find the radius using the circumference, you can use the formula: \( C = 2\pi r \). Given the circumference \( C = 68 \) n, we can rearrange the formula to solve for the radius \( r \): \[ r = \frac{C}{2\pi} \approx \frac{68}{2 \times 3.14} \approx 10.8 \text{ n} \] Since none of the provided options match this result, it could be wise to double-check the given circumference or the choices. When dealing with circular measurements, a common mistake is miscalculating the value of \( \pi \). Remember, \( \pi \) is approximately 3.14, but for more precision, you might want to use 3.14159 or check your calculator's settings to ensure you're using the correct value. Always make sure to round off correctly based on the context of the problem!