Area Problems
If each side of a square is increased by 25%, find the percentage change in its area.

56.25%
12.25%
36.25%
16.25%

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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?

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

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Area Problems
The length of a class room floor exceeds its breadth by 25 m. The area of the floor remains unchanged when the length is decreased by 10 m but the breadth is increased by 8 m. The area of the floor is

4987 sq.m
4442 sq.m
5100 sq.m
4870 sq.m

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