Question

if the area of an equilateral triangle is 169√3cm^2, find its perimeter

Answer 1

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Answer 2

Area of Equilateral Triangle =(√3a^2)/4
√3a^2/4=169√3
a^2/4=169√3/√3
a^2=169*4
a=√169*√4
a=13*2=26cm
Perimeter of Equilateral Triangle =3(a)
Perimeter =3*26=78cm