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The radius of a semicircle is $2\,\text{kilometers}$ . What is the semicircle's diameter? $\newline$ $\_\_\_\_\_\_$ kilometers

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Circles: word problems

Full solution

Q. The radius of a semicircle is

2\,\text{kilometers}

. What is the semicircle's diameter?

\newline

\_\_\_\_\_\_

kilometers

Understand the problem: Step $1$ : Understand the problem. $\newline$ We need to find the diameter of a semicircle when the radius is given as $2$ kilometers.
Recall relationship: Step $2$ : Recall the relationship between the radius and diameter. $\newline$ The diameter is twice the radius. That is, $d = 2r$ .
Calculate diameter: Step $3$ : Calculate the diameter. $\newline$ Diameter = $2 \times \text{Radius} = 2 \times 2 \, \text{km} = 4 \, \text{km}.$

More problems from Circles: word problems

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\newline

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

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1

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Question

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\newline

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Question

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\newline

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