They are all 4 sided quadrilaterals
The all have 4 interior angles that add up to 360 degrees
They all have 2 diagonals
They all have a perimeter which is the sum of their 4 sides
They all will individually tessellate
They all can be split into triangles
A quadrilateral is a polygon with four 'sides' . A parallelogram is a quadrilateral with two sets of parallel sides.
A triangle is not a quadrilateral, but a parallelogram and trapezoid are.
A square has all the properties of a rectangle and rhombus. (A square is always a rectangle.) A rectangle is not always a square but is always a parallelogram. A parallelogram is a quadrilateral (four sided figure) with both pairs of opposite sides are parallel. A rectangle is a quadrilateral with four right angles.
Polygon means many sides and is the name given to shapes that have 3 or more sides and a parallelogram is a 4 sided poylgon or a quadrilateral
A rhombus, a parallelogram, a trapezium (unless isosceles) and the most general quadrilateral.
A quadrilateral is a polygon with four 'sides' . A parallelogram is a quadrilateral with two sets of parallel sides.
A triangle is not a quadrilateral, but a parallelogram and trapezoid are.
A square has all the properties of a rectangle and rhombus. (A square is always a rectangle.) A rectangle is not always a square but is always a parallelogram. A parallelogram is a quadrilateral (four sided figure) with both pairs of opposite sides are parallel. A rectangle is a quadrilateral with four right angles.
A quadrilateral as described is a parallelogram. If the angles between the two sets of parallel lines are 90 degrees, the shape is a rectangle, a special form of parallelogram.
Polygon means many sides and is the name given to shapes that have 3 or more sides and a parallelogram is a 4 sided poylgon or a quadrilateral
They are all 4 sided quadrilaterals The all have 4 interior angles that add up to 360 degrees They all have 2 diagonals They all have a perimeter which is the sum of their 4 sides They all will individually tessellate They all can be split into triangles
p^2+q^2=2(a^2+b^2) where p,q=diagonals of the parallelogram a,b=sides of the parallelogram
A rhombus, a parallelogram, a trapezium (unless isosceles) and the most general quadrilateral.
A quadrilateral that is neither a trapezoid nor a parallelogram can be a general irregular quadrilateral, where none of the sides are parallel and the angles are not equal. Examples include a kite (which has two pairs of adjacent sides that are equal but does not have parallel sides) or an arbitrary four-sided shape with no specific properties. Such a shape does not conform to the definitions of trapezoids or parallelograms, which require specific relationships between the sides and angles.
Non-transitive dependency occurs in a database when a relationship between three or more attributes does not imply a direct relationship between all of them. Specifically, if attribute A is dependent on attribute B, and attribute B is dependent on attribute C, it does not necessarily mean that attribute A is dependent on attribute C. This type of dependency can complicate database normalization and design, as it can lead to redundancy and anomalies in data management. Understanding non-transitive dependencies is crucial for ensuring data integrity in relational databases.
A rectangle IS a parallelogram. However, it is a special case, since not only opposite, but also adjacent angles are equal. Since the angles must sum to 360 degrees, if they must all be equal you have 90 degrees or right angles for all of them . A rectangle is a quadrilateral with 4 right angles. A rhombus is a quadrilateral with 4 equal sides. A parallelogram is a 4-sided polygon where the opposite sides are parallel. A rectangle is a type of parallelogram, but it has the added requirement that all angles are 90°.
All quadrilaterals have four sides, four vertices and four angles. A quadrilateral where all sides have the same length can also be called a square, a rhombus, a rectangle, and a parallelogram. * * * * * If all 4 sides are equal it is a square or a rhombus but not a rectangle or parallelogram.