find the area of an equilateral triangle whose perimeter is 216 CM
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i hope this will help you
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Step-by-step explanation:
- use the formula of p.of equilateral triangle
- that is = 3×side
- 216×3side
- 216÷3=side
- than side is =72
ise the formula a.of equilateral triangle= root3upon4 a square
then the answet is root 3 1296
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