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notsponge [240]
3 years ago
11

What is the height of an equilateral triangle with side lengths of 15? round to tenths?

Mathematics
1 answer:
Vinil7 [7]3 years ago
8 0
If this is an equilateral triangle, we need half of it to find the height which is a leg of a right triangle with a hypotenuse of 15.  That means that the base of this half triangle is 7.5.  Use Pythagorean's Theorem to fine the height.  x^{2} =(15) ^{2} -(7.5) ^{2}.  x = 12.99 or 13
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