Area Problems
The area of circle inscribed in an equilateral triangle is 462 cm . The perimeter of the triangle is?

42 ? 3 cms
126 cms
72.6 cms
168 cms

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Area Problems
If the area of an equilateral triangle is x and its perimeter is y, then which one of the following is correct?

y4 = 216 x2
y4 = 432 x2
None of these
y2 = 432 x2

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