Respuesta :
If the condition means the surface area of the box, then it is 2*(8*10 + 8*3 + 10*3) = . . .
The surface area of the box with dimensions AxBxC linear units is 2*(AB + AC + BC) square units.
If the condition means conventional/regular rectangular piece of paper, then it is, probably,
the rectangle of 8+3+3 = 14 inches wide and 3+10+3+10 = 26 inches long.
The surface area of the box with dimensions AxBxC linear units is 2*(AB + AC + BC) square units.
If the condition means conventional/regular rectangular piece of paper, then it is, probably,
the rectangle of 8+3+3 = 14 inches wide and 3+10+3+10 = 26 inches long.