**1 To 20 Square, Square Chart, Square Value, Square Number, Square Value List, Square PDF Download, Square Online Test, Square Trick**

## 1 to 20 Square

When we multiply a number twice by itself, then the product we get is the square of that number. The value of squares 1 to 20 ranges from 1 to 400. Memorizing the values of these squares will help the students to simplify time-consuming equations quickly. The square of a number in exponential form is expressed as (x)^{2}.

## 1 to 20 Square Chart

**Also Check :- ****1 to 30 Cube PDF Download**

## 1 to 20 Square List

Square | Square Value |
---|---|

1² | 1 |

2² | 4 |

3² | 9 |

4² | 16 |

5² | 25 |

6² | 36 |

7² | 49 |

8² | 64 |

9² | 81 |

10² | 100 |

11² | 121 |

12² | 144 |

13² | 169 |

14² | 196 |

15² | 225 |

16² | 256 |

17² | 289 |

18² | 324 |

19² | 361 |

20² | 400 |

## 1 to 20 Square – Even Numbers

Square | Square Value |
---|---|

2² | 4 |

4² | 16 |

6² | 36 |

8² | 64 |

10² | 100 |

12² | 144 |

14² | 196 |

16² | 256 |

18² | 324 |

20² | 400 |

## 1 to 20 Square – Odd Numbers

Square | Square Value |
---|---|

1² | 1 |

3² | 9 |

5² | 25 |

7² | 49 |

9² | 81 |

11² | 121 |

13² | 169 |

15² | 225 |

17² | 289 |

19² | 361 |

## 1 to 20 Square PDF Download

## 1 to 20 Square of a Negative Number

The Square of a number can be found by multiplying the number by itself. The product of two negative numbers is always positive. If we find the square of a negative number, say -x, where x > 0, then (-x) × (-x) = x^{2}. Therefore, the square of a negative number is always positive.

## 1 to 20 Square Trick

## 1 to 20 Square Test

#### Q. What is the square of 19 ?

a) 144

b) 256

c) 121

d) 361

**Answer :** (d) 361

#### Q. What is a square of 12 ?

a) 121

b) 144

c) 64

d) 169

**Answer :** (b) 144

#### Q. What is the square of 8 ?

a) 80

b) 64

c) 88

d) 49

**Answer :** (b) 64

#### Q. What is the square of 18 ?

a) 144

b) 256

c) 324

d) 361

**Answer :** (c) 324

#### Q. What is a square of 16 ?

a) 256

b) 169

c) 8

d) 64

**Answer :** (a) 256

#### Q. What is the square of 14 ?

a) 7

b) 196

c) 256

d) 121

**Answer :** (b) 196

#### Q. What is the square of -11 ?

a) 256

b) 144

c) 121

d) -121

**Answer :** (c) 121

## 1 to 20 Square Image Download

## Solved Examples of Square

**Example 1:** Find the area of a square window whose side length is 12 inches ?

**Solution :**

Area of Square window (A) = (side)^{2}

i.e. A = (12)^{2}= 144

Therefore, the area of the square window is 144 inches^{2}.

**Example 2:** If a circular outlet window has a radius of 20 cm, find the area of the circular window ?

**Solution :**

Area of circular window (A) = π(radius)^{2}

i.e. A = π(20)^{2} = 1256 cm^{2}.

Therefore, the area of the circular window is 1256 cm^{2}.

**Example 3:** What is the square of -11 ?

**Solution :**

Square of -11 = (-11)^{2} = -11×-11 = 121.

**Example 4:** Evaluate 4^{2}+7^{2}+9^{2}+5^{2}.

Solution :

=(4×4)+(7×7)+(9×9)+(5×5)

=16 + 49 + 81 + 25

= 171 Ans

## Download More

**1 to 30 Cube Value [PDF Download]****1 to 30 Square Value [PDF Download]****1 to 25 Square Value [PDF Download]**

## FAQs

### What is the square of 1 to 20?

**Ans:** Square numbers from 1 to 25 are **1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144, 169, 196, 225, 256, 289, 324, 361 and 400**.

### What is the Square Value of 20?

**Ans:** 400

### What is the Square Value of 17?

**Ans:** 289

### What is the Square Root of 16?

**Ans:** 4