It is pronounced as a double s. So straBe would be pronounced stras-se.
It's called an "eszett" or "scharfes S" and is pronounced essentially the same as a double S.
Alpha looks like a capital A in English.
Well, a capital Y of course looks like a capital Y, but a lower case y doesn't always look like that. SupeRMAn
The letter is a capital U
It's called "gamma". Its capital letter looks like Γ, an upside down "L" and its lowercase looks like γ, which looks exactly like a "y"
That would be Omega (Ω) , the Greek capital letter.
Chi is the Greek letter that looks like a capital script X
Looks like there's one line of symmetry, so try capital A
It resembles a capital "P" with two horizontal lines through the top of the letter. This is what it actually looks like: ₱.
The Greek letter L (looks like an inverted capital V) which stood for the Spartan territory of Laconia.
Mu (the sound of m. Looks like u with an extended left or M as a capital)
A quarter of a turn is a right angle or 90 degrees which looks like the capital letter L
The Sum operator is the plus sign +. You may be referring to the Sum icon, which is the Greek letter Sigma, which looks like a funny capital letter E, or a capital M on its side. It is Î£.