Area Problems

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

31.5%

39.5%

65.5%

34.5%

31.5%

39.5%

65.5%

34.5%

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Area Problems
If the area of a semi-circle be 77 sq m, find its perimeter.

36 m

48 m

42 m

54 m

36 m

48 m

42 m

54 m

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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

4442 sq.m

4987 sq.m

4870 sq.m

5100 sq.m

4442 sq.m

4987 sq.m

4870 sq.m

5100 sq.m

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

40cm

10cm

30cm

20cm

40cm

10cm

30cm

20cm

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Area Problems
A man walked diagonally across a square plot. Approximately what was the percent saved by not walking along the edges?

30%

10%

40%

20%

30%

10%

40%

20%

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Area Problems
A square, a circle and equilateral triangle have same perimeter. Consider the following statements. I. The area of square is greater than the area of the triangle. II. The area of circle is less then the area of triangle. Which of the statement is/are correct?

Both I and II

Only II

Neither I nor II

Only I

Both I and II

Only II

Neither I nor II

Only I

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