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All of them, except rectangles. (Rectangles are special parallelograms.)
No, all four angles with in a rectangle are right angles.
Yes. Rectangles have four right angles.
No, only squares and rectangles have 4 right angles.
Rectangles have 4 rift angles and some parallelogram doesn't have 4 right angles. Only two parallelogram has 4 right angles , square and rectangle