jennawright56
jennawright56 jennawright56
  • 18-05-2020
  • Mathematics
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Each side of an equilateral triangle measures 9 cm. Find the height, h, of the triangle.

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mrohugcc
mrohugcc mrohugcc
  • 18-05-2020
Each side is 9 so half it is 4.5.
Pythagoras a^2 + b^2 = c^2 but rearranged.
9^2 - 4.5^2 = c^2
c^2 = 60.75
c = 7.7942286
c is the height, h.
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