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

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

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Area Problems
The percentage increase in the area of a rectangle, if each of its sides is increased by 20%

55%
22%
44%
33%

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