An angle can be named with one capital letter.
Yes capital a is symetrical
A capital letter is defined by being printed in a larger size or different form than its corresponding lowercase letter. Pretty much any letter which is printed in a larger format can be capital letter.
O
S
There is one exception to the rule about symbols not starting with a capital letter (unless they are named after a person). This exception involves the symbol for the litre. The symbol for the litre is not named after a person and technically its correct symbol should be the letter l (lower case). But you can see how easily this can be confused with the number 1, depending on the typeface used. So we can use the capital letter L as the symbol for the 'litre'. This means that the symbol for the litre can either be l or L and both forms are acceptable.
The capital letter of Australia is "C".
The Greek capital letter for Phi is Φ.
The Greek capital letter for Lamda is Λ.
The Greek capital letter for Xi is Ξ.
Yes, it is short for Veterinarian which has a capital letter.
do you use a capital letter for the word knighted
The abbreviation for Litre is just the letter l.
The Greek capital letter for Omega is Ω.
The Greek capital letter for Theta is Θ.
The Greek capital letter for Psi is Ψ.
The Greek capital letter for Delta is Δ.