Q: Are all rectangles are parallelogram true or false?

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Yes all rectangles are parallelogram but all parallelogram cannot be rectangles.

That is true. A parallelogram is a quadrilateral with both pairs of opposite sides parallel to one another. Special types of parallelograms include a rhombus (all four sides also congruent to each other), a rectangle (all four interior angles measure 90o), and a square (all four sides congruent and all four interior angles are right). A rectangle is a special case of a parallelogram, therefore all rectangles are by definition parallelograms but not all parallelograms are rectangles.

yes. rectangles are just the special cases of parallelograms where the angles are all 900

Some parallelograms are rectangles; all rectangles are parallelograms.

All of them, except rectangles. (Rectangles are special parallelograms.)

Related questions

True. All squares are rectangles, but not all rectangles are squares.

false

No. A rectangle is a parallelogram because all of its sides are parallel, but a parallelogram is not a rectangle because it does not have all right angles. It is a true statement to say that all rectangles are parallelograms. However, the statement that all parallelograms are rectangles is false. A parallelogram is a shape where its opposite sides are parallel to each other, including squares, hexagons, octagons, etc.

Yes all rectangles are parallelogram but all parallelogram cannot be rectangles.

Rectangles have all right angles. Parallelogram is spelled with an "o".

true

True.

all squares are rectangles but not all rectangles are squares

This is false. Every rectangle is a parallelogram, but the converse (your statement) is not true. Imagine the set of all quadrilaterals (4 sided polygons). Within that set would be sets of kites, parallelograms, and other quadrilaterals. Within the parallelogram set, would be rectangles, rhombuses and other parallelograms. Then if a rhombus is also a rectangle, it would be a square, that would be the intersection of the set of rectangles and set of rhombuses. Hope this helps.

false. you can have a 3 by 5 or a 8 by 29

That is true. A parallelogram is a quadrilateral with both pairs of opposite sides parallel to one another. Special types of parallelograms include a rhombus (all four sides also congruent to each other), a rectangle (all four interior angles measure 90o), and a square (all four sides congruent and all four interior angles are right). A rectangle is a special case of a parallelogram, therefore all rectangles are by definition parallelograms but not all parallelograms are rectangles.

yes. rectangles are just the special cases of parallelograms where the angles are all 900