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poizon [28]
3 years ago
8

If the side length is increased by a factor of 3, how much larger is the perimeter of a face of the new cube?

Mathematics
1 answer:
Luden [163]3 years ago
6 0
The <span>perimeter of a face of the new cube is 8 times larger than the previous cube.
</span>Let us say, the side of cube before increase is "a"
Then perimeter of the cube = 12a ,

because the cube has 12 sides.
And perimeter of a face of cube = 4a
Now, the side length is increased by factor of 3 i.e. new side is 3a
Thus, perimeter of new face of the cube = 4*3a = 12a

Therefore, the new perimeter is larger by = 12a - 4a = 8a 
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