Inserting Symbols and Inserting Symbols with Keyboard Shortcut Don't Return Same Character

Inserting Symbols and Inserting Symbols with Keyboard Shortcut Don't Return Same Character. How to fix it?

Let's say I want to insert a symbol which is;

Font : Bookman Old Style
Unicode Name : Black Up-Pointing Triangle
Character Code : 25B2

Method 1 - Inserting Symbols (Insert - Symbol)

I select all on the sheet then select font at "Home - Font - Bookman Old Style"

I select a cell.

I go "Insert - Symbol - Font - Bookman Old Style"

Then choose the symbol which is;

Font : Bookman Old Style
Unicode Name : Black Up-Pointing Triangle
Character Code : 25B2

Insert. The returning character is black up-pointing triangle.

Method 2 - Inserting Symbols with Character Code

Now I want to insert same character with the keyboard shortcut.

The character code is 25b2.

I select a cell.

I press "alt" and type 25b2 on numeric keyboard part keys.

and a different character (black smiling face) is inserted.

Why the two is different? How to fix that?

Thanks

NB: pressing and holding the Alt key while typing the number

So at "Insert - Symbols" section there are "char codes"

How to know "alt code" of a character?

What's the use of character codes if they are not used in short cut keys?

It's binary representation of character, used mostly in programming.

Have a read of links.
https://www.computerhope.com/jargon/c/charcode.htm
https://www.w3.org/International/que...at-is-encoding

Thank you very much all.