Surface area of cube: side length * side length * side length s Table = a?

Area of cuboid: length * width s base = ab

Lateral area of a cuboid: base circumference * height = (length+width) *2* height S side = 2 (a+b) h.

Surface area of cuboid: (length * width+length * height+width * height) *2 S Table =2(ab+ah+bh)

If it helps, please adopt it. Thank you.

This is the first answer. Wish progress! ! !