It is an obtuse angle.
Explanation:
Obtuse: An obtuse angle is an angle more than
but less than
.
Example :
,
etc.
Acute : An acute angle is an angle less than

Example :
,
etc.
Straight : A straight angle is
.
Right: A right angle is
.
Since the angle is more than
but less than
. So, it is an obtuse angle.