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) = x2. 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 inches2.
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 cm2.
Therefore, the area of the circular window is 1256 cm2.
Example 3: What is the square of -11 ?
Solution :
Square of -11 = (-11)2 = -11×-11 = 121.
Example 4: Evaluate 42+72+92+52.
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
