Area Problems
A circular piece of thin wire is converted into a rhombus of side 11 cm. Find the diameter of the circular piece?

28 cm
3.5 cm
7 cm
14 cm

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

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