Definition: A line or vector that is perpendicular to another line, surface, or plane.
Alright class, settle down now, let’s take a look today,
At a word we hear quite often – “normal,” come what may!
The dictionary gives us a definition keen,
A line or vector, precise and clean.
Perpendicular it stands, you see,
Respecting angles perfectly!
Think of it like this: imagine a wall so tall,
And a little stick, standing straight for all.
That stick is “normal,” at right-angled grace,
Pointing exactly ninety degrees in space!
It’s about relationships, how things align,
A reference point, truly divine.
"Normal" acts as a guide, you understand,
To measure angles across the land!
Now, don't get bogged down by just the math, see?
“Normal” also has meanings for you and me.
It can mean "usual," "typical," or “standard too,”
A common way things often accrue!
Does that make sense to everyone here? Any questions so far? Don’t be shy, let's discuss it with a twinkle in your eye!