Height of equilateral triangle measures 9cm find its area,correct to two decimal places(use root3=1.73)
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Answer: area = 46.71
Step-by-step explanation:
The formula for the height of an equilateral triangle is [(root3 / 2) * a]
a = side of the equilateral triangle
Equating the equation to the given height and solving, we get a = 6*root3
Area of an equilateral triangle = [(root3/4) * a^2]
Putting a = 6*root3, and solving, we get
Area = 27*root3 = 27 * 1.73 = 46.71
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