please help and make sure all the answers and work is right

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arariba

Mathematics

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Explanation & Answer

The interior angles of an equilateral triangle are all 60 degrees

That means the altitude forms a 60-30-90 right triangle with the base.

Half the base must be 18/sqrt(3) = 18sqrt(3) / 3 = 6sqrt(3)

Therefore, the length of a side of the equilateral triangle is

2*6sqrt(3) = 12sqrt(3)


Anonymous
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