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Answer :

Answer:

a≈9

Step-by-step explanation:

Using the formula

V=a3

Solving fora

a=V⅓=729⅓≈9

Answer:

9 cm

Step-by-step explanation:

the volume of a cube is x^3

x being for each side

so you would take the cube root of 729

which is 9

(9*9*9=729)