This is a straight angle.
It is called a straight angle.
An obtuse angle is any angle which measures between 90 degrees (that is, a right angle), and 180 degrees (that is, a straight line).
A reflex angle
is called a straight angle
straight angle
A straight angle is by definition 180°.
All straight angles are 180 degrees
This is a straight angle.
180o.
it is called a straight angle, because the shape of the angle is a straight line.
straight angle or line.
straight angle
An angle with 180 degrees is a straight line, so it's known as a straight angle.
Conditional: If an angle is a straight angle, then its measurement is 180°.Converse: If the measure of an angle is 180°, then it is a straight angle.
An angle whose measure is exactly 180 degrees is a straight angle.
Acute angle=45 degrees Right angle = 90 degrees Straight Angle=180 degrees.