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I need help with this question I can’t seem to get the correct answer or it’s off by a few numbers

I need help with this question I can’t seem to get the correct answer or it’s off-example-1
User Gcedo
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2 Answers

1 vote

Answer:perimeter is P = 27.3 cm. The number of sides is n = 7. Also, the length of the apothem is r = 4.0cm

Step-by-step explanation:

User Per Lundberg
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2 votes

Given:

The number of sides is n = 7.

The length of the apothem is r = 4.0cm

The perimeter is P = 27.3 cm.

To find:

The area of the heptagon

Step-by-step explanation:

The formula of the perimeter of the heptagon is,


\begin{gathered} P=7s \\ 27.3=7s \\ s=(27.3)/(7) \\ s=3.9cm \end{gathered}

The formula of the area of the heptagon is,


\begin{gathered} A=(1)/(2)* n* r* s \\ A=(1)/(2)*7*4*3.9 \\ A=54.6cm^2 \end{gathered}

Final answer:

The area of the heptagon is 54.6 square cm.

User Antoine Pelletier
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5.0k points