Question

Lily wants to cover her almirah with a coloured paper. If the almirah has length, breadth and height as 1.5m, 1m and 5m respectively. Find the number of square sheets of paper of side 1m she requires?

Answer 1

Answer: If the top and base are included, then answer is 28 papers

If they are not, answer is 25 papers

Step-by-step explanation:

Case 1 : Included

Then T.S.A. = 2(lh+bh+lb)

=> 2 (14)

=>28m²

Area of 1 square sheet = 1m²

So no. of sheets = 28/1 = 28

Case 2: Not included

C.S.A. = 2(lh+bh)

=>2 (12.5)

=>25 m²

By the same method we did last case, we get no. of papers = 25

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