Question

$3.the \: perimeter \: of \: an \: equilateral \: triangle \: of \: area \: 64 \sqrt{3} {cm}^{2} \: is$
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Answer 1

Step-by-step explanation:

area of equilateral triangle=√3/4side²

64√3=√3/4side²

64×4=side²

256=side²

side=16 cm

perimeter of equilateral triangle=3×side

perimeter of equilateral triangle=3×16=48cm

Answer 2

Step-by-step explanation:

area of equilateral triangle =

${\sqrt{3 } \div 4} \times {a}^{2}$

√3/4 a² = 64√3

so,a = 16

perimeter of the triangle = 3a = 48cm

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