The total surface area of three cubes within which side of 1 cube is eighteen feet square.
What is total surface area?
Total extent refers to the world including the bottom and the curved part. Total area of cube is 6[tex]l^{2}[/tex] where l is side of cube.
How to find total surface area of cube?
We have been provided that the one side of 1 cube=1 feet and that we should find the entire extent of three such cubes.
Total area of cube=6[tex]l^{2}[/tex] where l is that the side of cube.
Total extent of 1 cube=6*[tex]1^{2}[/tex]
=6*1
=6
Total surface area of three cubes=6*3
=18 [tex]feet^{2}[/tex]
Hence total surface area of three cubes given within the figure of side 1 feet is eighteen.
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