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Lady_Fox [76]
3 years ago
11

What's up!

Mathematics
1 answer:
inna [77]3 years ago
6 0

Answer:

Triangular prism with base being an equilateral triangle with side of 9.

<u>Area of equilateral triangle with side a:</u>

  • b = (√3/4)a²

<u>Volume:</u>

  • V = bh = (√3/4)a²h = (√3/4)9²*14 = 491.0 cm³

<u>Surface area:</u>

  • A = 3ah + √3/2*a² = 3*9*14 + √3/2*9² = 448.1 cm²

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