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✳Find the area of an equilateral triangle with sides 4√3 ( By Herons formula)
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Area of Triangle = √S(S - a)(S - b)(S -c)
where a , b and c are sides
and S = ( a + b + c )/2.
Here,
S = (4√3 + 4√3 + 4√3)/2
= (12√3)/2
= 6√3 unit.
Area = √ 6 √3 ( 6√3 - 4√3)(6√3 - 4√3)(6√3 - 4√3)
=√6√3 × 2√3 × 2√3 × 2√3
= √ 2 × 2 × 2 × 2 × 3 × 3 × 3
= 12√3 unit².
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