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Prove that the area of an equilateral tr...

Prove that the area of an equilateral triangle is equal to `(sqrt(3))/4a^2,` where `a` is the side of the triangle.

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Knowledge Check

  • Find the area of an equilateral triangle with a side length of 12

    A
    `6sqrt3`
    B
    `18sqrt3`
    C
    `36sqrt3`
    D
    `72sqrt3`

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