#### description

- Perimeter formulas-perimeter of the equilateral triangle = 3l,
- perimeter of a square = 4l,
- Perimeter of a regular pentagon = 5l,
- Area formulas,
- Rules for number patterns,
- Some more number patterns,
- Pattern in geometry

#### Related QuestionsVIEW ALL [4]

Use the given algebraic expression to complete the table of number patterns.

S. No |
Expression |
Terms |
|||||||||

1^{st} |
2^{nd} |
3^{rd} |
4^{th} |
5^{th} |
... | 10^{th} |
... | 100^{th} |
... | ||

1 | 2n - 1 |
1 | 3 | 5 | 7 | 9 | - | 19 | - | - | - |

2 | 3n + 2 |
2 | 5 | 8 | 11 | - | - | - | - | - | - |

3 | 4n + 1 |
5 | 9 | 13 | 17 | - | - | - | - | - | - |

4 | 7n + 20 |
27 | 34 | 41 | 48 | - | - | - | - | - | - |

5 | n^{2} + 1 |
2 | 5 | 10 | 17 | - | - | - | - | 10001 | - |