A right angle.
An angle of 90 degrees is a right angle.
An obtuse angle
A right angle
That's a right angle.
One forth of a revolution is 90 degrees or a right angle.
An angle which measure exactly 90 degrees is called a right angle.
An angle of 90 degrees is a right angle.
An angle less than 90 degrees is called an acute angle.
An obtuse angle
An angle greater than 90 but less than 180 degrees is an obtuse angle.
That's a right angle.
A right angle
The Right Angle.
One forth of a revolution is 90 degrees or a right angle.
An angle greater than 90 but less than 180 degrees is an obtuse angle.
A right angle is an angle of 90 degrees.
An angle above 90 but less than 180 degrees is an obtuse angle An angle above 180 degrees is a reflex angle