Answered

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The radius of a circle is 5 kilometers. What is the area?Give the exact answer in simplest form. ___ square kilometers. (pi, fraction)

The Radius Of A Circle Is 5 Kilometers What Is The AreaGive The Exact Answer In Simplest Form Square Kilometers Pi Fraction class=

Sagot :

Answer:

[tex]25\pi\text{ or 79 square kilometers}[/tex]

Explanation:

The below formula can be used to determine the area of a circle;

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

where pi = 3.14

r = radius of the circle = 5km

Let's go ahead and substitute the given into our formula and solve for A;

[tex]A=\pi(5)^2=25\pi=78.5\approx79\text{ square km}[/tex]

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