An obtuse angle
Obtuse Angle
An obtuse triangle.
An obtuse angle
It is an obtuse angle
obtuse angle
If one angle is a right angle, it is a right triangle. If one angle is an obtuse angle, it is an obtuse triangle. If there are no right nor obtuse angle then it is an acute triangle.
An obtuse angle
obtuse
45
An obtuse triangle
any triangle can contain at most 1 obtuse angle. it is called an obtuse triangle.