The perimeter of an equilateral triangle s 120cm2.find the area of triangle
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perimeter of an equilateral triangle=3side
120cm=3 side
120/3=side
side=40cm
area of an equilateral triangle=root3/4×side^2
=root3/4×40×40
=root3 ×400
Area=400 root3
120cm=3 side
120/3=side
side=40cm
area of an equilateral triangle=root3/4×side^2
=root3/4×40×40
=root3 ×400
Area=400 root3
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