Contents

- 1 How do you manually calculate square roots?
- 2 How do you find square roots without a calculator?
- 3 How can I get root 3 value?
- 4 What is the shortcut key for square root?
- 5 What is a square root of 11?
- 6 IS 400 a perfect square?
- 7 What is the root square of 169?
- 8 How do we solve quadratic equations by extracting the square root?

## How do you manually calculate square roots?

Take the number you wish to find the square root of, and group the digits in pairs starting from the right end. For example, if you want to calculate the square root of 8254129, write it as 8 25 41 29. Then, put a bar over it as when doing long division.

## How do you find square roots without a calculator?

Finding square roots of of numbers that aren’t perfect squares without a calculator

- Estimate – first, get as close as you can by finding two perfect square roots your number is between.
- Divide – divide your number by one of those square roots.
- Average – take the average of the result of step 2 and the root.

## How can I get root 3 value?

The square root of 3 is denoted by √ 3. The square root basically, gives a value which, when multiplied by itself gives the original number. Hence, it is the root of the original number. Table of Square Root.

Number | Square Root (√) |
---|---|

2 | 1.414 |

3 | 1.732 |

4 | 2.000 |

5 | 2.236 |

## What is the shortcut key for square root?

The Alt code for the symbol for the Square root is Alt +251 or 221A, then Alt+X. Follow these three simple steps to attach the symbol using the Alt code: – Position the pointer in the place where you want the square root symbol inserted. – Press and hold down the Alt key and type 251 from the numeric keypad.

## What is a square root of 11?

List of Perfect Squares

NUMBER | SQUARE | SQUARE ROOT |
---|---|---|

8 | 64 | 2.828 |

9 | 81 | 3.000 |

10 | 100 | 3.162 |

11 | 121 | 3.317 |

## IS 400 a perfect square?

400 is a perfect square. Because 20 * 20 = 400.

## What is the root square of 169?

The square root of 169 is 13.

## How do we solve quadratic equations by extracting the square root?

Solve by completing the square: x2−8x−2=0.

- Solution.
- Step 1: Add or subtract the constant term to obtain an equation of the form x2+bx=c.
- Step 2: Use (b2)2 to determint the value that completes the square.
- Step 3: Add (b2)2 to both sides of the equation and complete the square.
- Step 4: Solve by extracting roots.
- Answer: