# Square root of 7.78

### Square Root Calculator

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#### Square root result:

Sqrt(7.78). Find the square root of 7.78 or any other real number, positive or negative. Here are the answers to questions like: Square root of 7.78 or what is the square root of 7.78?

## What is square root? Definition of square root

A square root of a number 'x' is a number y such that y2 = x, in other words, a number y whose square is y. For example, 2 is the square root of 4 because 22 = 2•2 = 4, -2 is square root of 4 because (-2)2 = (-2)•(-2) = 4. When writing math, people often use sqrt(x) to mean the square root of x. Read more about square root here: Square Root - Wikipedia and here: Square Root - Wolfram

## Square Symbol?

Here is the square root symbol. It is is denoted by √, known as the radical sign or radix. ### Square root of values around 7.78

NumberSqrt
The square root of 7.38 is 2.717
The square root of 7.48 is 2.735
The square root of 7.58 is 2.753
The square root of 7.68 is 2.771
The square root of 7.78 is 2.789
The square root of 7.88 is 2.807
The square root of 7.98 is 2.825
The square root of 8.08 is 2.843
The square root of 8.18 is 2.860
The square root of 8.28 is 2.877