Question

Find the area of an equilateral triangle whose side is 12cm

Answer 1

Formula for equilateral triangle

=

$\frac{ \sqrt{3} }{4} a {}^{2}$

Here 'a' is side of equilateral triangle which is 12cm.

OR

a = 12cm

$= \frac{ \sqrt{3} }{4} \times 12 \times 12$

$= 36 \sqrt{3} cm {}^{2}$

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