Rectangles have four right angles so, yes, all squares are rectangles because they also have four right-angled corners.
However, rectangles can have sides of any length, as long as the opposite sides are of equal length, whereas a square has all four sides of equal length.
A more technical reply could be that a rectangle has two pairs of congruent and parallel sides, which all squares have.
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They are all rectangles (or 2 squares and 4 rectangles).They are all rectangles (or 2 squares and 4 rectangles).They are all rectangles (or 2 squares and 4 rectangles).They are all rectangles (or 2 squares and 4 rectangles).
No but all squares are a rectangles
No, rectangles are not squares
No. The square is a special case of rectangle where all the sides are of equal length. So some rectangles are squares, and all squares are rectangles.
All non rectangles are non squares.