An equilateral triangle has each of its side 60mm long. Find its area?
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ar = root s (s-a)(s-b)(s-c)
s=90mm
ar=root 90(90-60)(90-60)(90-60)
root 90*30*30*30
900 root2mm
plz mark as brainliest
s=90mm
ar=root 90(90-60)(90-60)(90-60)
root 90*30*30*30
900 root2mm
plz mark as brainliest
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