The volume of a cube is not proportional to its surface area Judgment questions It's a judgment question,

X ^ 3 / 6x ^ 2

Is the edge length of a cube proportional to its volume?
Right? Why?

No, if it is proportional, then their quotient is fixed value, and their quotient can be regarded as the square of edge length, so it's not right. Do you think it's ok?

The edge length of a cube is proportional to its surface area
B. Out of proportion

Because the edge length × edge length = the area of a square surface, the surface area of the cube △ the area of each surface = 6 (certain); therefore, the surface area of the cube is in direct proportion to the area of each surface, that is, the surface area of the cube is in direct proportion to the square of the edge length, and is not in proportion to the edge length

Is the surface area of a cube proportional to the edge length?
Among them, B: lengchang, ask

No
Because s = 6 × a ^ 2
S/a=6a
6a is not a definite quantity, so it doesn't fit
Y / x = K (certain)

The volume of a cube is not proportional to its surface area Judgment questions It's a judgment question,