Assuming that a traingle is meant to be a triangle, then the answer is none.
If by "then" you meant "than", then the answer could be a straight angle.
its a right angle
no, it only has 1 obtuse angle.
An obtuse angled triangle.An obtuse angled triangle.An obtuse angled triangle.An obtuse angled triangle.
A mirror reflects light. "Reflection" also means thinking about something. Thus if you were thinking about how you face looked in the mirror this morning you would be having a reflection on reflection.
An obtuse angle is only one angle, however if you meant 'how many degrees?' then an obtuse angle contains more than 90 and less than 180 degrees..
Assuming that a traingle is meant to be a triangle, then the answer is none.
Greater than 90, less than 180.
If by "then" you meant "than", then the answer could be a straight angle.
what is the meant by total internal reflection
Check spelling and ask again-do you need reflection or refraction
The reflection of sound is the bouncing back of sound waves when they hit a surface. This phenomenon can lead to echoes and reverberations in an environment.
The term "normal" in a ray diagram represents a line perpendicular to the surface at the point of reflection. It is used to show the angle of incidence and angle of reflection relative to the surface.
No - simply because a 'reflex' angle (I think that's what you meant) is more than 180 degrees, and an obtuse angle is between 90 and 180 degrees.
It is an obtuse angle. It is an obtuse angle. It is an obtuse angle. It is an obtuse angle.
obtuse