Mary wants to decorate her Christmas tree she wants to place the tree on a wooden block covered with colourd paper with picture of santa claus on it she must know the exact quantity of paper to buy for the purpose of the box has length 80cm and breadth 40cm and height 20cm respectively how many square sheets of paper of side 40cm would she requires
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Given:-
- The box has length 80cm and breadth 40cm and height 20cm.
- Square sheets of paper of side 40cm
To find:-
- How many would require square sheets of paper...?
Solutions:-
The dimensions of the cubical block are,
- length = 80cm
- breadth = 40cm
- height = 20cm
The number 6 square sheets paper of sides is 40cm.
Let the total Surface area of the block be '' s '' cm.
s = 2(lb + bh + hl)
= 2(80 × 40 + 40 × 20 + 20 × 80)
= 2(3200 + 800 + 1600)
The paper is available in square sheets of side.
a = 40cm
Area of a single square sheet.
A = a²
= (40)²
= 1600cm²
The number of square sheets request = S/A
= 11200/1600
= 7
Hence, the Mary would require 7 square sheets of paper.
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