You can name any shape or object in any way you like as long as you say what you are doing.
You can call it anything you like.
sphere
name a line that is not contained in plane N.
postulates
Yes, it is called the "Nezer Point".
Euclidean geometry, non euclidean geometry. Plane geometry. Three dimensional geometry to name but a few
You can call it anything you like.
Not sure about a name, but "an infinite surface with zero curvature" is an equivalent phrase.
jet plane
Istanbul the capital of Turkey name begins with the letter I.
It usually names a line.
WUY is not an acceptable name for plane q because it does not conform to the standard naming conventions for geometric planes, which typically require three non-collinear points or a single uppercase letter. A plane should be named using either three distinct points on the plane (e.g., ABC) or a single capital letter (e.g., Plane P). Since WUY does not fit either criterion, it cannot be used to represent plane q accurately.
The capital of Norway, which is Oslo.
supermarket does not have a capital letter unless it is the name of a supermarket like Asda or Tesco.
The first letter of a person's name is always a capital letter.
A capital letter is to start a sentence or when you use a name or place. Lowercase is the smaller of the two types.
John Denver