Area Problems
The area of the sector of a circle, whose radius is 12 meters and whose angle at the centre is 42, is?

52.8 sq. meters
39.6 sq. meters
26.4 sq. meters
79.2 sq. meters

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

40%
44%
42%
46%

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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
None of these
y2 = 432 x2
y4 = 216 x2

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