See character code '0xD0' in the 'Symbol' font on a Windows computer.
reflex angle
there is no symbol, you just say angle A is adjacent to angle B
The sign for a vertical angle is......(I don't know actually >.
The Greek letter theta
it is an acute angle.
reflex angle
there is no symbol, you just say angle A is adjacent to angle B
It is a right angle that measures 90 degrees and it has a special square like symbol
A red flashing light with an angle next to it.
angle brackets
I think it is just called the right angle symbol
The sign for a vertical angle is......(I don't know actually >.
right (apex)
The Greek letter theta
An obtuse angle.
It is a 90 degree right angle that has its own special symbol which looks like a small square in the corner.
There is no SI symbol, as such, for power factor. As power factor is the cosine of the phase angle (the angle by which the load current leads or lags the supply voltage), power factor is normally written as 'cos' followed by the lower-case Greek letter we pronounce 'phi' (I've no idea how to type a Greek letter in this answer!).