Question

The cube root of the volume of a cube gives the length of one side of the cube.

Answer 1

The problem states that "the cube root of the volume of a cube gives the length of one side of the cube." 
a, find the side length of the cube:
 It tells you that the volume is V = 343 cm^3.
 So take the cube root. Do you know how to do that on your calculator. Punch in 343, hit the y^x key
 and type in 0.333333... . My calculator returns 7.0 and you can check that by 7x7x7 = 343.
So the length of the side of the cube is 7.0 cm. 
b. If the sides iare 7.0 cm, then the area of a face is length x width = 7 x 7 ?? square cm it will be 49 cm2