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MakcuM [25]
2 years ago
10

What is the surface area of this triangular pyramid? 3 m 3 m 3 m 3 m 2.6 m​

Mathematics
1 answer:
tekilochka [14]2 years ago
4 0

\stackrel{\textit{3 standing triangles}}{3\left[\cfrac{1}{2}(\stackrel{b}{3})(\stackrel{h}{3}) \right]}~~ + ~~\stackrel{\textit{triangular base}}{\cfrac{1}{2}(3)(2.6)}\implies 13.5~~ + ~~3.9\implies 23.4~m^2

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Step-by-step explanation:

Given that a month of the year is chosen at random, to determine what is the probability that the month starts with the letter J or the letter M, the following calculation must be performed:

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