Q: Do all parallelograms have four equal sides?

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Not all parallelograms do but a rhombus does.

Assuming that the figure qualifies as a polygon, then all figures in this category are parallelograms. If all sides are equal in length then the shape is also a rhombus.

When you add all four sides of a quadrilateral(all parallelograms are quadrilateral), It must equal 360 degrees. So what you do is you add up the three angles that are given, them subtract that sum from 360.

It has four sides of equal length and the corner angles are all equal.

It is still a rhombus if all four of its sides are of equal length.

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No shape is a square but not a parallelogram as all squares are parallelograms: All parallelograms have opposite sides parallel and of equal length, and opposite angles are equal. All squares have opposite sides that are parallel and of equal length, and opposite angles are equal; thus all squares are parallelograms. However, all squares also have all angles equal to 90o and all four sides equal, but some parallelograms have angles not all 90o and/or not all four sides of equal length; thus not all parallelograms are squares.

A parallelogram is a four-sided figure with opposite sides parallel. Squares and rectangles are two examples of parallelograms. A square is a four-sided figure that has four equal sides, and opposite sides are parallel.

All "parallelograms" have opposite sides that are parallel. If all four sides have an equal length and the angles are not all right angles, it is a rhombus. If there is any right angle, then they are all right angles and the parallelogram is a square.(note : it is not possible for a quadrilateral to have four equal sides without being one of these parallelograms.)

In a rhombus all four sides are of equal length, while in a parallelogram opposing sides have the same length. Thus all rhombi are parallelograms, but all parallelograms are not rhombi.

Not all parallelograms do but a rhombus does.

A rhombus is a parallelogram with 4 equal sides. Many parallelograms do not have 4 equal sides. All parallelograms have 2 pairs of equal opposite sides.

No, a paralellogram is a four-sided polygon which has two sets of parallel lines. A square is a parallelogram, but most parallelograms do not have all equal sides.

its because there all equal sides and have 4 sides

It is a quadrilateral but not a parallelogram since it does not have two pair of parallel sides. no, but all parallelograms are quadrilaterals. Quadrilateral means four sides, paralleograms means the sides are parallel. The only quadrilateral parallelograms are Square, rectangle, rhombus. * * * * * ... and parallelograms themselves: 2 pairs of parallel sides which are also equal.

No. Parallelograms have only 4 sides with 2 sets of parallel sides: they include squares, rectangles, and rhombuses (rhombi, diamond shapes). Because opposite angles are equal, each pair of parallel sides is equal in length. (For squares and "equilateral rhombi" all four sides are equal in length.)

No. A quadrilateral is a shape with four sides. A parallelogram is a quadrilateral with two pairs of parallel sides. Not all quadrilateral are parallelograms. All parallelograms, however, are quadrilaterals.

Yes because all parallelograms have four sides. But the opposite is not true. There are some quadrilaterals that aren't parallelograms.