Area Problems

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

36 m

54 m

42 m

48 m

36 m

54 m

42 m

48 m

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Area Problems
The length of a rectangle is twice its breadth. If its length is decreased half of the 10 cm and the breadth is increased by half of the 10 cm cm, the area of the rectangle is increased by 5 sq cm, more than 70 sq cm. Find the length of the rectangle.

30 cm

40 cm

45 cm

21 cm

30 cm

40 cm

45 cm

21 cm

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Area Problems
The length of a rectangular field is 100 m and its breadth is 40 m. What will be the area of the field?

(4 x 102) sq m

(4 x 103) sq m

(4 x 10) sq m

(4 x 104) sq m

(4 x 102) sq m

(4 x 103) sq m

(4 x 10) sq m

(4 x 104) sq m

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Area Problems
The length of a rectangular field is increased by 60 % . By what percent would the width have to be decreased to maintain the same area?

75%

371/2%

120%

60%

75%

371/2%

120%

60%

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Area Problems
The perimeter of an isosceles triangle is 26 cm while equal sides together measure 20 cm. The third side and each of the equal sides are respectively.

14 cm and 6 cm

8 cm and 9 cm

10 cm and 8 cm

6 cm and 10 cm

14 cm and 6 cm

8 cm and 9 cm

10 cm and 8 cm

6 cm and 10 cm

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Area Problems
The length of a room is 5.5 m and width is 3.75 m. Find the cost of paying the floor by slabs at the rate of Rs. 800 per sq.metre.

Rs.15500

Rs.18500

Rs.17500

Rs.16500

Rs.15500

Rs.18500

Rs.17500

Rs.16500

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