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The dimensions of an oil tin are $26cm \times 26cm \times 45cm$. Find the area of tin sheet required to make 20 such tins.
Given:
Length of the sheet = 26 cm
Breadth of the sheet = 26 cm
Height of the sheet = 45 cm
To do:
We have to the area of the tin sheet required to make 20 such tins.
Solution:
Sheet required to make 1 tin = Total surface area of the sheet.
Total surface area of sheet = $2(length \times breadth) + 2 (breadth \times height) +
2 (length \times height )$
Total surface area of the sheet = $2 (26 \times 26) + 2 (26 \times 45) + 2 (26 \times 45)$
Total surface area of the sheet = $2 (676) + 2 (1170) + 2 (1170)$
Total surface area of the sheet = $1352 + 2340 + 2340$
Total surface area of the sheet = 6032 sq cm
Sheet required to make 20 tins = $20 \times Total surface area of a sheet$
Sheet required to make 20 tins = $20 x 6032$
Sheet required to make 20 tins = 120640 sq. cm.
The area of tin sheet required to make 20 such tins is 120640 sq. cm.