A rectangle can have only one obtuse angle, and lots of rectangles do not have an obtuse angle at all. So it is either none or one.
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A rectangle has no interior obtuse angles.
There are no angles they are all obtuse angles
A trapezium has 2 obtuse and 2 acute angles.
There can be 10 obtuse angles. If there are no reflex angles there can by up to three acute angles (I think).
Honey, a cube doesn't have any obtuse angles. It's all about those right angles, sweetie. So, you won't find any obtuse angles hanging out in a cube, darling.