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malfutka [58]
3 years ago
15

A cube has a surface area of 216 square inches. what is the edge length of the cube?​

Mathematics
1 answer:
Aleksandr [31]3 years ago
5 0

Answer:

  6 inches

Step-by-step explanation:

For an edge length of s, the six square faces of the cube add to an area of ...

  cube area = 6s²

Filling in the given information and solving for s, we get

  216 = 6s²

  36 = s² . . . . . divide by 6

  √36 = s = 6 . . . . take the square root

The edge length is 6 inches.

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