The radius of a circle has been reduced from 9 cm to 7 cm . the appropriate percentage decrease in area is?

Area Problems
The radius of a circle has been reduced from 9 cm to 7 cm . the appropriate percentage decrease in area is?

31.5 %

39.5 %

34.5 %

65.5 %

31.5 %

39.5 %

34.5 %

65.5 %

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Area Problems
In a circle of radius 21 cm an arc subtends an angle of 72° at the centre. The length of the arc is?

26.4 cm

19.8 cm

13.2 cm

21.6 cm

26.4 cm

19.8 cm

13.2 cm

21.6 cm

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Area Problems
The length of hall is (4/3) times its breadth. If the area of hall be 300 square meters, the difference between the length and the breadth is?

15 meters

None of these

3 meters

4 meters

15 meters

None of these

3 meters

4 meters

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Area Problems
The side of a square is 5 cm which is 13 cm less than the diameter of a circle. What is the approximate area of the circle?

235 sq cm

255 sq cm

245 sq cm

265 sq cm

235 sq cm

255 sq cm

245 sq cm

265 sq cm

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Area Problems
The diagonal of a rectangle is √41 cm and its area is 20 sq. cm. The perimeter of the rectangle must be:

20 cm

18 cm

9 cm

41 cm

20 cm

18 cm

9 cm

41 cm

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Area Problems
The area of a square is equal to the area of a rectangle. The length of the rectangle is 5 cm more than a side of the square and its breadth is 3 cm less than the side of the square. What is the perimeter of the rectangle ?

18 cm

34 cm

15 cm

26 cm

18 cm

34 cm

15 cm

26 cm

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Area Problems

Area Problems The radius of a circle has been reduced from 9 cm to 7 cm . the appropriate percentage decrease in area is?

Area Problems In a circle of radius 21 cm an arc subtends an angle of 72° at the centre. The length of the arc is?

Area Problems The length of hall is (4/3) times its breadth. If the area of hall be 300 square meters, the difference between the length and the breadth is?

Area Problems The side of a square is 5 cm which is 13 cm less than the diameter of a circle. What is the approximate area of the circle?

Area Problems The diagonal of a rectangle is √41 cm and its area is 20 sq. cm. The perimeter of the rectangle must be:

Area Problems The area of a square is equal to the area of a rectangle. The length of the rectangle is 5 cm more than a side of the square and its breadth is 3 cm less than the side of the square. What is the perimeter of the rectangle ?

Area Problems
The radius of a circle has been reduced from 9 cm to 7 cm . the appropriate percentage decrease in area is?

Area Problems
In a circle of radius 21 cm an arc subtends an angle of 72° at the centre. The length of the arc is?

Area Problems
The length of hall is (4/3) times its breadth. If the area of hall be 300 square meters, the difference between the length and the breadth is?

Area Problems
The side of a square is 5 cm which is 13 cm less than the diameter of a circle. What is the approximate area of the circle?

Area Problems
The diagonal of a rectangle is √41 cm and its area is 20 sq. cm. The perimeter of the rectangle must be:

Area Problems
The area of a square is equal to the area of a rectangle. The length of the rectangle is 5 cm more than a side of the square and its breadth is 3 cm less than the side of the square. What is the perimeter of the rectangle ?