Compute the surface area of a cube with the diagonal of a face 2 feet in length.

Use Pythagorean theorem to compute the side (s) of a square with a diagonal (d):

![15154|461x41](upload://bLqY8eEwMv3Dusfvl3z4y2KIW0b.jpeg)


Then area of a side square: ![15155|94x26](upload://4zHUJEuwQLkb6nFKRoeMDtrSnJM.jpeg)
Surface of cube is 6 times the area of a side surface = 6 * 2 = 12
Surface area of cube = ![15156|41x24](upload://icWdE1sxLZQNHw9od5H2h9jP0Ds.jpeg)

Computer Science & Information Technology

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Computer Science & Information Technology

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Computer Science & Information Technology

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Computer Science & Information Technology

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Computer Science & Information Technology