Question

If thr area of equalateral triangle is 16√3cm. Find its perimeter

Answer 1

$a = \sqrt{3} \div 4 \times {s}^{2} \\ = 16 \sqrt{3} \div \sqrt{3} \times 4 = {s}^{2} \\ 64 = {s}^{2} \\ s = \sqrt{64} \\ s = 8$
s = 8 cm
P = 3s
P = 3×8
P = 24 cm
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