Find the area of the regular pentagon

Luthervd asked May 3, 2023

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Luthervd asked May 3, 2023

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10 votes

Answer:

$A = 43.1\ cm^2$

Explanation:

Step 1: Determine the area

$A=(1)/(4)\sqrt{5(5+2√(5))}*a^2$

$A=(1)/(4)\sqrt{5(5+2√(5))}*(5\ cm)^2$

$A = (1)/(4)*6.8819*25\ cm^2$

$A = 43.1\ cm^2$

Answer:
$A = 43.1\ cm^2$

Lie Ryan answered May 9, 2023

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