The square root of 13.21 upto two decimal places is_____ . [given √14 = 3.742 & √13= 3.606]
Answers
Square Root 1 to 20 is the list of square roots of all numbers from 1 to 20. Square root can have both positive and negative values. The positive values of square roots from 1 to 20 range from 1 to 4.47214.
In square roots 1 to 20, the numbers 1, 4, 9, and 16 are perfect squares, and the remaining numbers are non-perfect squares i.e. their square root will be irrational. The square root 1 to 20 in radical form is expressed as √x and in the exponential form, it is expressed as (x)½.
Square Roots 1 to 20:
In radical form: √x
In exponential form: (x)½
Largest Square Root: √20 = 4.4721
Where x is any number between 1 to 20.
Square Root from 1 to 20 Chart
Square Roots 1 to 20
Square Root from 1 to 20
Learning square root 1 to 20 will help you to simplify the time-consuming long equations quickly. The value of square roots 1 to 20 up to 3 decimal places is listed in the table below.
Square Root from 1 to 20 Rounded to 3 Decimal Places
√1 = 1
√2 = 1.414
√3 = 1.732
√4 = 2
√5 = 2.236
√6 = 2.449
√7 = 2.646
√8 = 2.828
√9 = 3
√10 = 3.162
√11 = 3.317
√12 = 3.464
√13 = 3.606
√14 = 3.742
√15 = 3.873
√16 = 4
√17 = 4.123
√18 = 4.243
√19 = 4.359
√20 = 4.472
☛ Square Root 1 to 20 PDF
The students are advised to memorize these square roots 1 to 20 values thoroughly for faster math calculations. Click on the download button to save its PDF copy.
Square Root 1 to 20 for Perfect Squares
The table below shows the values of square roots from 1 to 20 for perfect squares.
√1 = 1
√4 = 2
√9 = 3
√16 = 4
Square Root 1 to 20 for Non-Perfect Squares
The table below shows the values of 1 to 20 square roots for non-perfect squares.
√2 = 1.414
√3 = 1.732
√5 = 2.236
√6 = 2.449
√7 = 2.646
√8 = 2.828
√10 = 3.162
√11 = 3.317
√12 = 3.464
√13 = 3.606
√14 = 3.742
√15 = 3.873
√17 = 4.123
√18 = 4.243
√19 = 4.359
√20 = 4.472
☛ Check: Square Root Calculator
How to Calculate Square Root from 1 to 20?
Method 1: Prime Factorization
Example: Value of √4
Prime factorization of 4 is 2 × 2
Pairing prime factors: 2
Therefore, the value of √4 = 2
Method 2: Long Division Method
Square Root 1 to 20 by Long Division Method
Square Roots of Numbers Between 1 to 20
Square Root of 1
Square Root of 2
Square Root of 3
Square Root of 4
Square Root of 5
Square Root of 6
Square Root of 7
Square Root of 8
Square Root of 9
Square Root of 10
Square Root of 11
Square Root of 12
Square Root of 13
Square Root of 14
Square Root of 15
Square Root of 16
Square Root of 17
Square Root of 18
Square Root of 19
Square Root of 20
Solved Examples on Square Root 1 to 20
Example 1: A square metal sheet has an area of 11 sq. inches. Find the length of the side of the metal sheet.
Solution:
Let ‘a’ be the length of the side of the metal sheet
Area of the square metal sheet = 11 in2 = a2
i.e. a2 = 11
a = √11 = 3.316 in
Therefore, the length of the side of the metal sheet is 3.316 inches.
Example 2: If a circular tabletop has an area of 15π sq. inches. Find the radius of the tabletop in inches?
Solution:
Area of circular tabletop = 15π in2 = πr2
i.e. 15 = r2. Hence, radius = √15
Using the values from 1 to 20 square root chart, the radius of the tabletop = √15 in = 3.872 in.
Example 3: Find the value of 9√15 + 6√13
Solution:
9√12 + 6√13 = 9 × (3.872) + 6 × (3.606) [the value of √12 = 3.872 and √13 = 3.606]
Therefore, 9√12 + 6√13 = 31.176 + 21.636 = 56.49
Show Solution >
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FAQs on Square Root 1 to 20
What is the Value of Square Root 1 to 20?
If you Take Square Roots from 1 to 20, how many of them will be Irrational?
What are the Methods to Calculate Square Roots from 1 to 20?
What Values of Square Roots from 1 to 20 are Between 2 and 3 inclusive?
What is the Value of 21 Plus 2 Square Root 16?
How Many Numbers in Square Roots 1 to 20 are Rational?
Answer:
the square root of 13.21
3.63455636908