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ollegr [7]
3 years ago
11

A pentagonal prism has a base area of 124 square inches. The lateral area (area of the sides) is made up of 5 equal-sized rectan

gles that are each 80 square inches. What is the surface area of the pentagonal prism?
Mathematics
1 answer:
salantis [7]3 years ago
6 0

Prism

Total surface area of the pentagonal prism is 648 square inches

Step-by-step explanation:

In geometry, a pentagon is defined as a five-sided polygon. In a simple pentagon the sum of the internal angles is 540°.

The pentagon base area = 124 square inches

In a pentagonal prism there are two such surfaces  (top & bottom)

Hence the area of two pentagons = 124 × 2 = 248 square inches

The lateral area (area of the sides) is made up of 5 equal-sized rectangles

Area of one such rectangle is 80 square inches

Area of five such rectangle is 80 × 5 = 400 square inches

Total surface area of the pentagonal prism = 248 + 400 = 648 square inches

Hence, Total surface area of the pentagonal prism is 648 square inches

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