The angle is less than 180 degrees, but more than 90 degrees

90° < x < 180°

Step-by-step explanation:

suppose,

The angle=x

The angle is less than 180 degrees

so, x < 180°

more than 90 degrees

90° < x

now conbine them,

90° < x < 180°

which is called obtuse angle.

Obtuse angle.

Step-by-step explanation:

For example 120 and 170 degrees are obtuse angles.