Height UT

How long is the height in the equilateral triangle with a side e = 15?

Correct answer:

h =  12.99

Step-by-step explanation:

e=15 h2 = e2(2  e) 2 4h2 = 4e2e2  4h2 = 3e2  h=23 e=23 15=12.99

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