the complement of an acute angle (less than 90 degrees) is 90 minus the angle which is 71 degrees in this case.
The supplement of an angle is found by subtracting the angle from 180 degrees. Therefore, the supplement of a 19-degree angle is 180 - 19 = 161 degrees.
19
90 - 19 = 71 degrees.
An angle greater than 90 degree is an obtuse angle.
complete angle
A right angle
An acute angle
A right angle
A right angle
It is 19 degrees. You can find the compliment of an angle by subtracting that angle from 90.
straight angle
That would be an acute angle.