A rhombus satisfies this. Also a rectangle. And a square (which is both a rhombus and a rectangle). There may be others.
square,
It is always true that a parallelogram:is a four-sided shape (a quadrilateral)has opposite sides that are parallel to each other and of the same lengthhas opposite internal angles that equal one anotherhas diagonals that bisect one anotherhas a rotational symmetry of 2.
octagon
triangle
There are 275 diagonals in a shape with 25 sides. The formula is n*(n-3)/2
Trapezoid.
Only for a square or rhombus (diamond shape). The diagonals of a rectangle bisect each other, but are not perpendicular and do not bisect the opposite angles they join.
Rectangle
The diagonals of a rectangular shape will only bisect opposite angles if, in fact, the shape is a square. Otherwise they will not bisect them.
square,
A trapezoid Trapezoid - 2 congruent diagonals that do not bisect each other. No right angles and has 1 pair of opposite parallel sides.
Star
A shape with four sides and perpendicular diagonals is called a rhombus. In a rhombus, all sides are of equal length, and the diagonals bisect each other at right angles. Additionally, the diagonals are not necessarily of equal length, which distinguishes a rhombus from a square.
Because a rhombus is a regular four-sided shape.
In an arrowhead (or delta) shape, the diagonals do not bisect each other at their midpoints. Instead, one diagonal is typically longer and intersects the other at a point that is not the midpoint of either diagonal. Thus, while they do intersect, they do not bisect each other.
No - only one of the diagonals bisects the angles of the shape.
Squares.