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Circumference and the area of a circle with radius 5 ft you

Circumference And The Area Of A Circle With Radius 5 Ft You class=

Sagot :

The circunference formula is given by

[tex]C=2\pi r[/tex]

where r is the radius. Since r measures 5 ft, we have

[tex]\begin{gathered} C=2\pi\cdot5 \\ C=10\pi \end{gathered}[/tex]

By taking into account that Pi is 3.14, the circuference is equal to 31.4 ft.

On the other hand, the area formula is given by

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

Then, by substituting r=5 into this formula, we get

[tex]\begin{gathered} A=(3.14)(5^2) \\ A=3.14\times25 \\ A=78.5ft^2 \end{gathered}[/tex]

then, the area is equal to 78.5 square feet

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