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IRINA_888 [86]
3 years ago
7

What is the approximate area of the decagon? Recall that a decagon is a polygon with 10 sides.

Mathematics
2 answers:
JulsSmile [24]3 years ago
8 0

A = 5 / 2 a^2 square root over 5 + 2 square root of 5

hopefully this helps you out

AURORKA [14]3 years ago
4 0

Answer: it’s 188 cm

Step-by-step explanation:

I took the quiz

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Answer with detail. Please show work for all questions (worth 100 points plus ill mark brainliest) ^-^ Thanks!
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Answer:

see below

Step-by-step explanation:

The volume of a cylinder is given by

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The lateral surface area of a pyramid is found by taking the area of the sides

LSA = 4 * the area of a triangle

          we multiply by 4 since there are 4 sides

        = 4 * 1/2 b*h  where b is the base of the triangle and h is the height of the triangle.  (in this case it would be the slant height)

           = 2 * 8 *22

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