The symbol is (theta i) which looks like a 0 with a line through it and a little i beside it on the bottom right corner
I believe that it's not called anything, it is just a symbol to indicate that the angle is a right angle (90 degrees)
reflex angle
there is no symbol, you just say angle A is adjacent to angle B
Because a right angle is a right angle.
I think it is just called the right angle symbol
It is a right angle that measures 90 degrees and it has a special square like symbol
you go right then go up
A right angle is an internal angle equal to 90o You can tell if an angle is a right angle because it has a little symbol which is a square where the two lines meet to form the angle. A right angle is a quarter of a circle. Lines that are at a right angle are perpendicular to each other.
right (apex)
perpendicular lines form a right angle at their intersection so draw the right angle symbol at the intersection
It is a 90 degree right angle that has its own special symbol which looks like a small square in the corner.
It has usually a red box at the vertex and is called a "right angle."
The symbol is (theta i) which looks like a 0 with a line through it and a little i beside it on the bottom right corner
I believe that it's not called anything, it is just a symbol to indicate that the angle is a right angle (90 degrees)
reflex angle
a right angle is a right angle