It varies. If it has reflex angles, then it varies, depending on the number of reflex angles and their location in relation to each other. Otherwise (if it has no reflex angles) then it has 4 diagonals.
A hexagon with two reflex angles opposite one another will have two diagonals that lie entirely outside the hexagon and one that is partly outside.
No - only one of the diagonals bisects the angles of the shape.
In rhombuses and squares the diagonals bisect opposite angles.
No, the diagonals of a parallelogram do not necessarily bisect the angles. The diagonals of a parallelogram divide it into four congruent triangles, but they do not necessarily bisect the angles of those triangles.
It varies. If it has reflex angles, then it varies, depending on the number of reflex angles and their location in relation to each other. Otherwise (if it has no reflex angles) then it has 4 diagonals.
Yes. They may not be wholly inside the shape but that is not a necessary requirement.
A hexagon with two reflex angles opposite one another will have two diagonals that lie entirely outside the hexagon and one that is partly outside.
No - only one of the diagonals bisects the angles of the shape.
In rhombuses and squares the diagonals bisect opposite angles.
No, a rectangle's diagonals do not bisect opposite angles.
No, but the diagonals of a square does bisects its interior angles.
No, the diagonals of a parallelogram do not necessarily bisect the angles. The diagonals of a parallelogram divide it into four congruent triangles, but they do not necessarily bisect the angles of those triangles.
The diagonals of a rectangle bisect the angles only if the rectangle is a square.
The diagonals of a square and a rhombus cross at right angles.
The diagonals of a rectangle do not cross at right angles
In general, the diagonals of irregular polygons do not bisect the angles at their vertices. Specifically, in shapes such as trapezoids, kites, and irregular quadrilaterals, the diagonals may intersect at angles that do not evenly split the angles of the vertices. This contrasts with regular polygons, where diagonals do bisect angles due to their symmetrical properties.