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Area of a Circle

Calculate the...

Question

Calculate the ratio of the area of a circle with radius $r$ to the circumference of the circle.

\frac{r}{2}

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\frac{π}{2}

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\frac{2}{r}

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\frac{2}{π}

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\frac{r^{2}}{2}

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Solution

The correct option is B $\frac{r}{2}$
Given, radius $= r$
Area of circle will be $π r^{2}$
Circumference of the circle will be $2 π r$
Ratio of area of a circle to circumference of the circle will be
$\frac{π r^{2}}{2 π r} = \frac{r}{2}$

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