It is an obtuse angle because it is greater than 90 but less than 180 degrees
An angle of 159 degrees is an obtuse angle
compliment of a 159 degree angle = nonecomplimentary angles has a sum of 90 degrees.
Not sure about an angel, but an angle of 159 degrees is an obtuse angle.
21 degree angle
An angle greater than 90 degree is an obtuse angle.
An acute angle
A right angle
Acute angle
A right angle
complete angle
A right angle
straight angle