3 years ago

Net for a cube has a total surface area of 150 in.2. what is the length of one side of a square face

1 answer:

5 0

Surface area of a cube is given by
SA=6a²
but
SA=150 in²
thus
150=6a²
solving for a we obtain:
150/6=a²
a²=25
thus
a=√25
a=5 inches
hence the side length is 5inches

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