Area Problems
An error 2% in excess is made while measuring the side of a square. The percentage of error in the calculated area of the square is:

4.04%
2.02%
4%
2%

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Area Problems
A rectangular park 60 m long and 40 m wide has two concrete crossroads running in the middle of the park and rest of the park has been used as a lawn. If the area of the lawn is 2109 sq. m, then what is the width of the road?

2.91 m
5.82 m
3 m
None of these

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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
None of these
y4 = 432 x2
y2 = 432 x2

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Area Problems
The area of rectangle whose length is 5 more than twice its width is 75 sq units. What is the perimeter of the rectangle?

30 unit
20 unit
24 unit
40 unit

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