Sorry, Here are all of them: Actute less than 90* Right equals 90* Obtuse more than 90* Straight equals 180*
An angle cannot be formed by only one ray. However, an angle formed by two opposite rays is called a straight angle.
exterior angle
An angle formed by two radius of a circle? I presume that depends on the inclination of one of the two radius related to the other one.
The interior angle of a polygon is the angle formed by two adjacent sides of a polygon where the angle lies inside the area formed by the polygon. The exterior angle is that formed by one of these sides and the line formed by extending the other side. Consequently, External angle = 180 deg - Internal angle. Because they form supplementary angles, it does not matter which of the two sides you extend.
An exterior angle of the polygon.
Exterior
An angle formed by a wedge is a very intersting thing. How should I put it. We have to think about the wedge as being formed by an angle. Or vice versa. However, one should consider the intricate yet fulfilling joy of eating a twinkie.
There are two angles: -- The small one is 60°, an acute angle. -- The big one is 300°, a reflex angle.
If you mean an angle then an angle is formed by two straight lines meeting at a vertex.
A 90 degree angle is formed at a right angle.
right triangle
An angle is formed by two rays with the same endpoint. If the two rays are perpendicular to one another, they form a right angle.