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goldfiish [28.3K]
3 years ago
9

Find the surface area of the equilateral triangular pyramid.

Mathematics
2 answers:
Mrac [35]3 years ago
8 0
The answer is 228. hoped this helped

11Alexandr11 [23.1K]3 years ago
5 0
Area  = 3 * 1/2 * 10 * 12 + 1/2 * 12 * 8  =  180 + 48 = 228 answer
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The formula we'll use for this is the simple interest formula, or:

Where:

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   Since your interest rate is "per year" and you gave your time interval in "month(s)" we need to convert your time interval into "year" as well.

       Do this by dividing your time, 6- month(s), by 12, since there's 12 months in 1 year.

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To find the simple interest, we multiply 6000 × 0.05 × 0.5 to get that:

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