Question

the perimeter of an equilateral triangle is 60m. what will be it's area?
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Answer 1

perimeter of equilateral triangle

= 3 × side

60 = 3 × side

side = 20m

area of equilateral triangle =

$\frac{ \sqrt{3} }{4} \times (side) ^{2}$

hence answer will be

$100 \sqrt{3} \: {m}^{2}$

Answer 2

Step-by-step explanation:

Area= $\rm\sqrt{s(s-a)(s-b)(s-c)}$