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A circle has a circumference of 153.86 units.
What is the radius of the circle? Use 3.14 for
pi and enter your answer as a decimal.
units

A circle has a circumference of $153$ . $86$ units. $\newline$ What is the radius of the circle? Use $3$ . $14$ for $\pi$ and enter your answer as a decimal. $\newline$ $\square$ units

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Weighted averages: word problems

Full solution

Q. A circle has a circumference of

153

.

86

units.

\newline

What is the radius of the circle? Use

3

.

14

for

\pi

and enter your answer as a decimal.

\newline

\square

units

Use Circumference Formula: To find the radius, use the circumference formula $C = 2 \times \pi \times r$ , where $C$ is the circumference and $r$ is the radius.
Rearrange to Solve for r: Rearrange the formula to solve for r: $r = \frac{C}{2 \pi}$ .
Plug in Given Values: Plug in the given values: $r = \frac{153.86}{2 \times 3.14}$ .
Calculate the Radius: Calculate the radius: $r = \frac{153.86}{6.28}$ .
Perform Division: Perform the division: $r \approx 24.5$ .

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