Find the Radius of a Circle

Given that a circle has a circumference of 31.4 units, find its radius.

We know the formula for the circumference of a circle is:

$C = 2 \pi r$

We can rearrange this formula to solve for the radius:

$r = \frac{C}{2 \pi}$

Substitute the given circumference value into the formula:

$r = \frac{31.4}{2 \pi}$

Using the approximate value of \( \pi \approx 3.14 \), we get:

$r = \frac{31.4}{2 \times 3.14} = \frac{31.4}{6.28} \approx 5$

So, the radius of the circle is approximately 5 units.

Given a circle with a circumference of 31.4 units, determine the radius.

Utilize the circumference formula:

$C = 2 pi r$

Rearrange to isolate the radius:

$r = frac{C}{2 pi}$

Insert the given circumference:

$r = frac{31.4}{2 pi}$

Using ( pi approx 3.14 ):

$r = frac{31.4}{6.28}$

Thus,

$r approx 5$

The radius of the circle is approximately 5 units.

Given a circle with a circumference of 31.4 units, find the radius.

Formula:

$C = 2 pi r$

Rearrange:

$r = frac{C}{2 pi}$

Calculation:

$r = frac{31.4}{2 imes 3.14}$

$r approx 5$

The radius is approximately 5 units.

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