Question

Find the length of a cube whose volume is 729cm³

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Answer 1

Step-by-step explanation:

Formula for volume of cube is given by V=a

3

where a is edge of the cube.

Given,

volume =729 cm

3

⟹a

3

=729

a

3

=9×9×9

∴a=9 cm

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Answer 2

Step-by-step explanation:

cube root of 729=9

9 is the correct answer