1.

The area of equilateral triangle measure `36sqrt(3) cm^2` Find the perimeter of triangle.

Answer» Area of equilateral triangle=`sqrt3/4a^2`
`36sqrt3=sqrt3/4a^2`
`a^2=36*4`
`a=6*2=12cm`
Perimeter=3a=3*12=36 cm.


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