13. If the area of an equilateral triangle is 81/3 cm 2, find its hei – InterviewSolution

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13. If the area of an equilateral triangle is 81/3 cm 2, find its hei

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Area of a equilateral triangle=√3a^2/4or 81√3=√3a^2/4or a^2=81√3×4/√3or a=√81×4.•.a=18

then, height of equilateral triangle=√3a/2=18√3/2=9√3 answer

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