Question

EXERCISE 15.1
1.
(d)
13 cm
10 cm
12 cm
2.
The area of a rectangular park is 3500 m².
If its width is 50 m, then find the cost of its
fencing at the rate of 100 per metre.
The side of a square piece of a land is 20 m.
Find the cost of levelling the land at the rate
of 80 per square metre.
Find the area and perimeter of each of the
following plane figures.
(a)
13 cm
3.
10 cm
4. The area of a rectangle of length 16 cm is the
same as the area of a square of side 12 cm.
Find the perimeter of the rectangle.
5. The cost of levelling a rectangular field at
50 per square metre is 30,000. If its length
and breadth are in the ratio of 3:2, then find
its perimeter.
Find the area and circumference of a circle
whose radius is 10.5 cm. Take n =
22
7
15 cm
(b)
6.
10 cm
(c)
20 cm
20 cm
410 cm
20 cm
202​

Answer 1

Answer:

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