# Square Route of Ryan

Square Root

Who invented this ?

What is it used for ?

Where can you use it?

Why do we need it ?

How do we solve it?﻿

The earliest documentation of who invented the square root was the Rhind Mathematical Papyrus which shows how the Egyptians extracted square roots around 1650 BC. Square root is used for finding a number that to the second power equals the product. We need square root for studying to be a teacher or math professor . It is a little complicated solving square roots but it is possible, a way of solving square root is if you have 7 to the second power it would be 49, therefore the square root of 49 is 7. That way is called guess then solve. A good thing to have for solving square roots is all the square roots from 1-20. This is a list you can use .............

1 to the second power = 1

2 to the second power = 4

3 to the second power = 9

4 to the second power = 16

5 to the second power = 25

6 to the second power = 36

7 to the second power = 49

8 to the second power = 64

9 to the second power = 81

10 to the second power = 100

11 to the second power = 121

12 to the second power = 144

13 to the second power = 169

14 to the second power = 196

15 to the second power = 225

16 to the second power = 256

17 to the second power = 289

18 to the second power = 324

19 to the second power = 361

20 to the second power = 400

Those you need to know to solve square roots. We need square roots for finding a number multiplied by itself = ____. Square root may seem pretty complicated but, now you know its not that hard. In fact its pretty fun ........ sometimes. Ex: 42 = 4x4=16. http://www.mathsisfun.com/tables.html Or you can take a multiplication table like this.

The highlighted is the product of a number2 . This would be helpful to memorize.

Look at Spongebob he's happy about square root.

Here are some square root symbols B).