Triangle perimeter

The area of an equilateral triangle is 81√3 cm². Calculate its circumference.

Final Answer:

x =  54 cm

Step-by-step explanation:

S=81 3=81 3 cm2140.2961 cm2  S = a2 3/4  a=34 S=34 140.2961=18 cm  x=3 a=3 18=54 cm



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