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Andrews [41]
3 years ago
8

The surface area of a polyhedron is found by

Mathematics
1 answer:
Serga [27]3 years ago
3 0

Answer:

sum of the areas of their faces

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

In order to solve this problem, you need to use trigonometry (sin, cosine, tangent).  

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We need to use tangent in this case because 10 is the opposite side from the 57° angle, and x is right next to it, making it adjacent.  So, our equation would look like this:

tan (57)° = 10/x

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