See the related link for a listing of all geometry symbols and their explanations.
From your description ABC is 45° The angle formed by ABC is 45 degrees.
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
If by "then" you meant "than", then the answer could be a straight angle.
Look at a diamond symbol in a pack of cards. The top and bottom vertices are usually acute angles.
reflex angle
When the angle = 90 degrees, it is a Right Angle. When the angle is greater than 90 degrees, it is an obtuse 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
If by "then" you meant "than", then the answer could be a straight angle.
Look at a diamond symbol in a pack of cards. The top and bottom vertices are usually acute angles.
reflex angle
An angle greater than 180 degrees is a reflex angle
Any angle greater than 90 degrees is an obtuse angle, and any angle greater than 180o is more specifically called a reflex angle.
An angle greater than 90 degrees is an obtuse angle or a reflex angle if it is greater than 180 degrees
When the angle = 90 degrees, it is a Right Angle. When the angle is greater than 90 degrees, it is an obtuse angle.
there is no symbol, you just say angle A is adjacent to angle B
The angle of incidence is greater.
Yes because an obtuse angle is greater than a right angle
Is an obtuse angle