There are many types of angles such as obtuse, right, acute, complementary, supplementary, adjacent, alternate, corresponding, and opposite angles, just to name a few.
acute
An obtuse angle.
What kind of angel is 180Β°
A reflex angle
it is an acute angle.
a right angle
An angle of 98 degrees is an obtuse angle
It is a reflex angle
An obtuse angle
A rectangle is not an angle.
right angle
an obtuse angle