the perimeter of a equilateral triangle is 60m.find its area
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thx kaushik
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3a=60m
a=20m
so, √3/4a^2
=√3/4×20×20
=100√3m^2
a=20m
so, √3/4a^2
=√3/4×20×20
=100√3m^2
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