A 12 cm x 14 cm x 6cm box is to be completely wrapped with a foil. Determine the required area of foil.
The surface area of a foil is the sum of the areas of all the faces of the box.
Let length = x=12
Let width = y=6
Let height = h=14
SA = 2xy + 2xh + 2yh
Plug in the given values into the formula to find the area.
"SA = 2(12)(6) + 2(12)(14) + 2(6)(14)"
"SA= 648cm"
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