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what is the perimeter? and what unit should i use?

What Is The Perimeter And What Unit Should I Use class=

Sagot :

The given information is:

- 7-gon: it has 7 sides.

- a=15 ft

- s=14 ft

The perimeter, is the sum of the side lengths, as it has 7 sides, then its perimeter is:

[tex]\begin{gathered} P=7s \\ P=7*14ft \\ P=98ft \end{gathered}[/tex]

Now, the area is given by the formula:

[tex]\begin{gathered} A=\frac{7}{2}(s*a) \\ \\ A=\frac{7}{2}(14ft*15ft) \\ \\ A=\frac{7}{2}(210ft^2) \\ \\ A=\frac{1470ft^2}{2} \\ \\ A=735ft^2 \end{gathered}[/tex]

The area is 735 square feet

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