volume_mute
Area of a Regular Pentagon
publish date: 2026/05/16 21:27:28.272995 UTC
A regular pentagon has an apothem length of \(5.5\text{ in.}\) and a single side length of \(8\text{ in.}\). Find its complete area.
Answer = (1)
Correct Answer
(1) 110
Explanation
Perimeter \(P = 5 \times 8 = 40\text{ in.}\). Area \(A = \frac{1}{2}aP = \frac{1}{2} \times 5.5 \times 40 = 110\text{ in.}^2\).
Reference
Mathematics for college students