Question

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EXERCISE 20(A)
1.
The length and the breadth of a rectangular plot are 135 m and 65 m. Find, its
perimeter and the cost of fencing it at the rate of 60 per m.
The length and breadth of a rectangular field are in the ratio 7: 4. If its perimeter
is 440 m, find its length and breadth.
Also, find the cost of fencing it @ 150 per m.
3.
The length of a rectangular field is 30 m and its diagonal is 34 m. Find the breadth
of the field and its perimeter.
4. The diagonal of a square is 122 cm. Find its perimeter.
Find the perimeter of a rectangle whose length = 22.5 m and breadth = 16 dm.
6. Find the perimeter of a rectangle with length = 24 cm and diagonal = 25 cm
7.
The length and breadth of a rectangular piece of land are in the ratio of 5: 3. If the
total cost of fencing it at the rate of 48 per metre is 19,200, find its length and
breadth.
8/ A wire is in the shape of a square of side 20 cm. If the wire is bent into a rectangle
of length 24 cm, find its breadth
9. If P = perimeter of a rectangle, I = its length and b = its breadth; find :
(0) P, if I = 38 cm and b = 27 cm
(ii) b, if P = 88 cm and 1 = 24 cm
(iii) I, if P = 96 m and b = 28 m
10. The cost of fencing a square field at the rate of 75 per meter is 67,500. Find the
perimeter and the side of the square field.
11. The length and the breadth of a rectangle are 36 cm and 28 cm. If its perimeter is
equal to the perimeter of a square, find the side of the square.
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Answer 1

Answer:

too much big question

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