It is a straight line because angles on a straight line add up to 180 degrees but angles greater than 180 degrees are reflex angles
An angle of between 90 degrees and 180 degrees is called an obtuse angle, an angle that is exactly 180 degrees is called a straight angle (because it creates a straight line), and an angle of more then 180 degrees is called a reflex angle.
An angle of 180° is a straight line.
An angle which is more than 180 degrees but less than 360 degrees is called a reflex angle.
180 degrees is a straight line
Reflex
An angle of between 90 degrees and 180 degrees is called an obtuse angle, an angle that is exactly 180 degrees is called a straight angle (because it creates a straight line), and an angle of more then 180 degrees is called a reflex angle.
An angle that measures 180 degrees is called a straight angle.
An angle that measures 180 degrees is a straight angle, or straight line.Line.
180 degrees -- a straight angle
An angle of 180° is a straight line.
An angle greater than 180 degrees but less than 360 degrees is a reflex angle.
An angle that is between 90 degrees and 180 degrees is called an obtuse angle. Ex. : 175 degrees, 140 degrees.
An angle that is exactly 180 degrees is called a straight angle.
450
A reflex angle is between 180˚ and 360˚. (An obtuse angle is between 90˚ and 180˚.)
A angle that measures more than 180 degrees is called a REFLEX ANGLE.
Angles that are 180 degrees (θ = 180°) are known as straight angles. • Angles between 180 and 360 degrees (180°< θ < 360°) are called reflex angles.