Question

1.The lid of a rectangular box of sides 40 cm by 10 cm is sealed all round with tape. What is the length of the tape required?

2.What is the length of the wooden strip required to frame a photograph of length and breadth 32 cm and 21 cm respectively?

3.Find the perimeter of each of the following shapes:
(a) A triangle of sides 3 cm, 4 cm and 5 cm.
(b) An equilateral triangle of side 9 cm.
(c) An isosceles triangle with equal sides 8 cm each and third side 6 cm.

4.Find the side of the square whose perimeter is 20 m.

5.Find the cost of fencing a square park of side 250 m at the rate of? 20 per metre.​

Answer 1

Answer:

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Answer 2

Answer:

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Step-by-step explanation:

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