how much cardnboard is needed to make a rectangular box of length 12cm breadth 10cm height 7cm?
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We make a cardboard rectangular box with cardboard sheet. So we need to find the area of the cardboard sheet required.
The box will be an empty box with a lid.
So we need to find the total surface area of a cuboid.
TSA = 2 ( lb + bh + hl)
Given length l = 12 cm , breadth b = 10 cm.. height h = 7 cm.
So TSA = 2 (12*10 + 10 * 7 + 7 * 12) cm²
= 2 * 274
= 548 cm²
The box will be an empty box with a lid.
So we need to find the total surface area of a cuboid.
TSA = 2 ( lb + bh + hl)
Given length l = 12 cm , breadth b = 10 cm.. height h = 7 cm.
So TSA = 2 (12*10 + 10 * 7 + 7 * 12) cm²
= 2 * 274
= 548 cm²
kvnmurty:
:-)
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