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Without using the direct formula, find the area of an equilateral triangle with each side 2a.

By Daisy

Without using the direct formula, find the area of an equilateral triangle with each side 2a.

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Daisy

of sin theta=cos theta, than find the tan theta.a) 1 b) 2 c) 0 d) -1
(plz guys answer this question plz )​

Saina’s duffel bag has 7 red, 23+6x green, and 12 blue shuttlecocks. If any 2 shuttlecocks are taken at random, and the probabilit

1 thought on “Without using the direct formula, find the area of an equilateral triangle with each side 2a.”

  1. Step-by-step explanation:

    The sides of triangle are a,a,a units

    s=

    2

    a+a+a

    =

    2

    3a

    Using Heron’s formula

    Area of equilateral triangle is

    s(s−a)(s−b)(s−c)

    =

    2

    3a

    ×

    2

    a

    ×

    2

    a

    ×

    2

    a

    =

    2

    3

    a

    2

    Reply

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