A parallelogram has 0 or 2 acute angles. If the parallelogram happens to have four right-angled corners, it is still a parallelogram (and a rectangle), but no acute angles.
None because a rectangle has 4 interior right angles
4
It has 2 pairs of opposite equal angles which are acute and obtuse.
A pair of each. Unless it is a rectangle, in which case it has none.
There are no acute angles in a rectangle which has 4 equal interior right angles
3
2
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Two (or none, if it is a rectangle).
A parallelogram has 0 or 2 acute angles. If the parallelogram happens to have four right-angled corners, it is still a parallelogram (and a rectangle), but no acute angles.
None. They are all right angles.
None because a rectangle has 4 interior right angles
4
It has 2 pairs of opposite equal angles which are acute and obtuse.
none all it has is right angles
A pair of each. Unless it is a rectangle, in which case it has none.