Question

area of equiletral triangle with side 9cm​

Answer 1

Here's your answer is..

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Answer 2

Answer:

It is 81√3/4cm

Step-by-step explanation:

$area \: of \: an \: equilateral \: triangle = \frac{ \sqrt{3}a {}^{2} }{4}$

$a = 9cm$

$= \frac{ \sqrt{3} \times 9 \times 9 }{4}$

$= \frac{81 \sqrt{3} }{4}$

$area \: of \: the \: equilateral \: triangle = \frac{81 \sqrt{3} }{4}$

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