Question

10. (a) The perimeter of a rectangle is 38 cm and its length is 12 cm. Find its breadth.
(b) The perimeter of a rectangle is 40 cm and its breadth is 8 cm. Find its length
11. (a) Find the perimeter of a table top measuring 2 m 15 cm by 1 m 65 cm
(b) The lid of a square box of side 50 cm is sealed all round with tape. Find the length of
the tape required
12. The perimeter of a rectangle is 42 cm and its length is double its breadth. Find the length
and breadth of the rectangle.
13. The shortest side of a triangular garden is 20 m. Its perimeter is 130 m and its longest side
is 3 times its shortest side. Find the third side of the garden.
14. The perimeter of an equilateral triangle is 42 cm. Find the perimeter of a square, each side
of which is double the side of the triangle.
15. A rectangular playground is 42 m long and 38 m broad. If a girl runs round the playground
twice then find the distance covered by her
16. A field is in the shape of a square of side 150 m. The cost of fencing the field is 745 per
metre. Find the total cost of fencing the field.
17. A rectangular piece of land measures 0.8 km by 0.6 km. Each side is to be fenced with
three rows of wire. Find the length of the wire needed. If the cost of fencing is 750 per
metre, find the total cost of fencing the land.


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