supplimentary angles
A straight angle.
45 degrees. 45 degrees
90 degrees.
15 degrees
When an angle has a measure of 120 degrees, it is an obtuse angle. When an angle is an obtuse angle its measure is between 90 and 180 degrees. That is: 90 degrees < obtuse angle < 180 degrees.
A straight angle.
180 degrees because opposite rays form a straight line.
you measure the opposite side and then subtract it of 360 degrees.
45 degrees. 45 degrees
0 degrees
150 degrees
They are 90 degrees and 270 degrees.
90 degrees.
150 degrees
15 degrees
20 degrees.
20 degrees