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Math 80 how to get a radius from the area of a circleArea = 508

Math 80 How To Get A Radius From The Area Of A CircleArea 508 class=

Sagot :

Solution:

Given:

[tex]A=508\text{ square units}[/tex]

Using the area of a circle,

[tex]A=\pi r^2[/tex]

Hence,

[tex]\begin{gathered} 508=\pi\times r^2 \\ \frac{508}{\pi}=r^2 \\ r=\sqrt{\frac{508}{\pi}} \\ r=12.716 \\ r\approx12.72 \end{gathered}[/tex]

Therefore, the radius is approximately 12.72 units

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