Go to Insert Symbol. From there you can go through the character sets and you will find the square root symbol. You could also get it in the Character Map and then copy and paste it into Powerpoint.
When you find square roots, the symbol for that operation is a radical, which looks like this: When changing from radical form to fractional exponents, remember these basic forms: The n th root of a can be written as a fractional exponent with a raised to the reciprocal of that power.
List of Square symbols with html entity, unicode number code. Learn how to make over 59 Square symbols of math, copy and paste text character.
Keyboard shortcuts: Enter math expressions You can use keyboard shortcuts to enter the following formats, Greek letters, symbols, and special functions for mathematical expressions, whether answering on a computer, tablet, or smartphone.
Superscript 2 Use ASCII code to achieve that, there's also a select character or select symbol function I do believe. It's a superscript 2 by the way. It looks like this: x you can copy and paste.