180 degrees is exactly half of a circle: thus a straight line.
Subtract the angel you know from 180 degrees. The answer is its supplement.
An angle of 180 degrees is a straight line.
Supplementary angles add up to 180 degrees
90 degrees
180
180 degrees is exactly half of a circle: thus a straight line.
180 degrees.An Straight angel has 180 degrees
An angle whose measure is exactly 180 degrees is a straight angle.
Subtract the angel you know from 180 degrees. The answer is its supplement.
An angle of 180 degrees is a straight line.
straight angle
Supplementary angles add up to 180 degrees
The angle of a straight line is 180 degrees.
90 degrees
If you mean by straight angel an angel of magnitude 180 degrees, then the answer is no. The sum of the three interior triangle angels is 180 and not only a single angel.
An acute angle is lower than 90 degrees. An obtuse angle is higher than 90 degrees. But lower than 180 degrees. A right angle is exactly 90 degrees. A straight angle is exactly 180 degrees. A reflex angle is higher than 180 degrees. A Circle is exactly 360 degrees.