Question

Find the area of an equilateral triangle having side 6cm.
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Answer 1

Answer:

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

$side = 6cm$

$\frac{ \sqrt{3} }{4} \times 6 {}^{2}$

$= \frac{36 \sqrt{3} }{4}$cm

$= 9 \sqrt{3}$cm

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Answer 2

Step-by-step explanation:

area of equilateral triangle

$\sqrt{3} \div 4 \times side {}^{2}$

$\sqrt{3} \div 4 \times 6 = 3 \sqrt{3} \div 2 \: cm {}^{2}$