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Introduction of Cubes and Cube Root

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notes

The word ‘cube’ is used in geometry. A cube is a solid figure which has all its sides equal. 

Consider the numbers 1, 8, 27, ... 
These are called perfect cubes or cube numbers.
We note that `1 = 1 × 1 × 1 = 1^3;  8 = 2 × 2 × 2 = 2^3;
27 = 3 × 3 × 3 = 3^3`. 
The following are the cubes of numbers from 1 to 10.

Number  Cube
1 `1^3 = 1`
2 `2^3 = 8`
3 `3^3 = 27`
4 `4^3 = 64`
5 `5^3 = 125`
6 `6^3 = 216`
7 `7^3 = 343`
8`` `8^3 = 512`
9 `9^3 =729 `
10 `10^3 = 1000 ` 

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