Area Problems

Area Problems
If the radius of a circle be reduced by 50%. Its area is reduced by?

34.5%

39.5%

65.5%

31.5%

34.5%

39.5%

65.5%

31.5%

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Area Problems
The length and breadth of a square are increased by 40% and 30% respectively. The area of a resulting rectangle exceeds the area of the square by?

82%

42%

None of these

62%

82%

42%

None of these

62%

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Area Problems
In a rhombus, whose area is 144 sq.cmone of its diagonal is twice as long as the other, The lengths of its diagonals are?

6 cm, 12 cm

12 cm, 24 cm

6 ?2 cm, 12?2 cm

24 cm, 48 cm

6 cm, 12 cm

12 cm, 24 cm

6 ?2 cm, 12?2 cm

24 cm, 48 cm

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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:

2%

2.02%

4%

4.04%

2%

2.02%

4%

4.04%

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Area Problems
The length of a rectangle is twice its breadth. If its length is decreased by 5 cm and the breadth is increased by 5 cm, the area of the rectangle is increased by 75 cm 2 . Therefore , the length of the rectangle is?

30 cm

20 cm

50 cm

40 cm

30 cm

20 cm

50 cm

40 cm

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Area Problems
The perimeter of two squares are 68 cm. Find the perimeter of the third square whose area is equal to the different of the areas of these two squares.

8 cm

64 cm

60 cm

32 cm

8 cm

64 cm

60 cm

32 cm

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