Mathegoras

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Volume of a regular pentagonal prism

Middle school · ●○○○○ 10 pts

A right prism has regular pentagons as its bases. The side length of each pentagonal base is 4 cm and the height of the prism is 11 cm. Find the volume of the prism in cubic cm. Use the area of a regular pentagon ≈1.720477 s2\approx 1.720477\,s^2 for side length ss. Round to two decimal places.

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volume of prismsarea of regular polygons