Question 598445: an equilateral triangle has an altitude that measures 26 meters. Find the area of the triangle to the nearest square meter Answer by edjones(8007) (Show Source):
You can put this solution on YOUR website! The altitude bisects the base forming two 30-60-90 triangles. This type triangle has a ratio of 1 for the base and sqrt(3) for the altitude.
x/1=26/sqrt(3)
x=15 approximately
15*2=30 base of the equilateral triangle.
.5*26*30=390 m^2
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Ed