No. There are quadrilaterals that have no right angles.
no,what about a trapizoid or rhombus
No, a quadrilateral does not necessarily have any right angles. If it has a right angle, it will necessarily have four right angles, and will be a rectangle. But not all quadrilaterals are rectangles. As long as a polygon has four sides, it is a quadrilateral. It might have, for example, two angles of 100o and two angles of 80o.
The simple answer is no, not all parallelograms have at least one right angle. However, there are some that do. Rectangles and squares are 'special' parallelograms that all have at least one right angle.
Not all 4 sided quadrilaterals have lines of symmetry.
Because the angle sum of all quadrilaterals is 360 degrees.
The only quadrilaterals that always have all four right angles are the square and the rectangle. All four angles in a quadrilateral must add up to 360 degrees.It is possible to have non-regular quadrilaterals with one or two right angles. A quadrilateral with three right angles becomes either a square or a rectangle, because its fourth angle must also be a right angle.
No
No.
Some do, some don't.
no,all quadrilaterals have 4 right angles
No.
A kite can have on right angle, even two!
No, a quadrilateral does not necessarily have any right angles. If it has a right angle, it will necessarily have four right angles, and will be a rectangle. But not all quadrilaterals are rectangles. As long as a polygon has four sides, it is a quadrilateral. It might have, for example, two angles of 100o and two angles of 80o.
A quadrilateral where each angle is a right angle is called a rectangle. In addition to having four right angles, a rectangle also has opposite sides that are equal in length. If all four sides are of equal length, it is specifically termed a square. Thus, all rectangles are quadrilaterals, but not all quadrilaterals with right angles are rectangles unless they also have equal opposite sides.
no,what about a trapizoid or rhombus
The simple answer is no, not all parallelograms have at least one right angle. However, there are some that do. Rectangles and squares are 'special' parallelograms that all have at least one right angle.
False because it depends on what type of a 4 sided quadrilateral it as for example a square has 4 right angles whereas rhombus has no corner right angles.
only right tringles or HL triangles have at least 1 right angle