The circumference (C) of a swimming pool is 47 feet. Which formula can you use to find the radius (r) if you know that C = 2πr ?
r = 2πC
r = πC/2
r = 2C/π
r = C/2π
The circumference (C) of a swimming pool is 47 feet. Which formula can you use to find the radius (r) if you know that C = 2πr ?
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To find the radius (r) from the circumference (C) of a swimming pool, you can rearrange the formula (C = 2pi r).
To isolate r, you divide both sides by (2pi):
[
r = frac{C}{2pi}
]
Thus, the correct answer is:
r = C/2π
This formula allows you to calculate the radius when you know the circumference. If you have any more questions or need further assistance, feel free to ask!