It has two obtuse angles
A trapezium has one or two obtuse angles.
8
An obtuse triangle can have no right angles, and has two equal angles.
A regular octagon has 8 interior obtuse angles.
It has two obtuse angles
A rhombus have 2 obtuse angles
There are no angles they are all obtuse angles
There are 3 obtuse angles in a heptagon.
A trapezium has one or two obtuse angles.
8
An obtuse triangle can have no right angles, and has two equal angles.
One and the two others are acute angles
A trapezium has 2 obtuse and 2 acute angles.
A regular octagon has 8 interior obtuse angles.
There are 3 obtuse angles. All 3 exterior angles are obtuse. (This is, admittedly, a bit of trick question!)
A triangle can have at most one obtuse angle, but triangles do not necessarily have any obtuse angles.