Respuesta :

MAMJ
The surface area of the cube can be worked about by working out the surface area of one square (7mm*7mm = 49mm^2) and multiplying it by the number of sides (6 for a cube).

49mm^2*6 = 294mm^2

The surface area of the cube is 294 mm²

Surface area of a cube:

  • Surface area = 6l²

where

l = side length

Therefore,

l = 7mm

Surface area = 6 × 7²

Surface area = 6 × 7 × 7

Surface area = 6 × 49

Surface area = 294 mm²

learn more on cubes here:https://brainly.com/question/945825

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