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While running for class president, Estelle handed out a campaign button. The button has a radius of $4$ centimeters. What is the button's area? $\newline$ Use $3.14$ for $\pi$ . If necessary, round your answer to the nearest hundredth. $\newline$ _____ square centimeters

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Circles: word problems

Full solution

Q. While running for class president, Estelle handed out a campaign button. The button has a radius of

4

centimeters. What is the button's area?

\newline

Use

3.14

for

\pi

. If necessary, round your answer to the nearest hundredth.

\newline

_____ square centimeters

Identify formula for area: Step $1$ : Identify the formula for the area of a circle. $\newline$ Area = $\pi \times \text{radius}^2$ $\newline$ Here, $\pi$ (pi) is approximately $3.14$ , and the radius is given as $4\,\text{cm}$ .
Calculate area: Step $2$ : Plug the values into the formula to calculate the area. $\newline$ Area = $3.14 \times (4 \, \text{cm})^2$ $\newline$ Area = $3.14 \times 16 \, \text{cm}^2$ $\newline$ Area = $50.24 \, \text{cm}^2$

More problems from Circles: word problems

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\newline

R(h)=\sqrt{13h}

gives the distance, in kilometers, that Skyler can see when their eyes are

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\newline

A(d)=\pi d^{2}

gives the area, in square kilometers, that Skyler can guard when they can see a distance of

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\newline

Which expression models the area Skyler can guard when their eyes are

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1

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13\pi h

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2

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0.7m

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\newline

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\newline

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\newline

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\newline

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Question

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and the other leg measures

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\newline

\mathrm{cm}^{3}

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\newline

\mathrm{ft}^{3}

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