Phil is making a number cube out of cardboard . He traces one face of the number cube onto a coordinate grid . The coordinates of two opposite vertices of the face are (4, 8) and (12, 16) . What is the surface area, in square units, of Phil’s entire number cube?

Answer 1

the diagonal has length
√(8^2+8^2) = 8√2
So, the sides have length 8.

The total area is thus 6*8^2

Answer 2

nope

Answer 3

lolololololololololololol

Answer 4

384