How do you type the squared sing on a UK keyboard?

On a UK keyboard, you can type the squared symbol (²) by holding down the "Alt" key and typing "0178" on the numeric keypad. Alternatively, you can use the Unicode character by pressing "Ctrl" + "Shift" + "u", then typing "00B2" and pressing "Enter" or "Space". If these methods are unavailable, you can copy and paste the symbol from a character map or online source.