Yes
No, they are just bisectors. The angle between them is not (usually) the 90o required to be perpendicular.
You could prove this by congruent triangles, but here are two simpler arguments: --------------- Since a square is a rhombus, and the diagonals of a rhombus are perpendicular bisectors of each other, then the diagonals of a square must be perpendicular bisectors of each other -------------------- A square has four-fold rotational symmetry - as you rotate it around the point where the diagonals cross, there are four positions in which it looks the same. This means that the four angles at the centre must be equal. They will each measure 360/4 = 90 degrees, so the diagonals are perpendicular. Also. the four segments joining the centre to a vertex are all equal, so the diagonals bisect each other.
The diagonals of a rectangle are never perpendicular but the diagonals of a square are perpendicular
Sure, a square is a rectangle and the diagonals of a square are perpendicular.
If the diagonals are congruent and are perpendicular bisectors of each other then the parallelogram is a square. If the diagonals are not congruent but are perpendicular bisectors of each other then the figure would be a rhombus.
Yes
Yes
A square.
True, the diagonals of a rhombus are perpendicular bisectors of one another.
Where the diagonals meet. Also where the perpendicular bisectors of the sides meet.
square
No, they are just bisectors. The angle between them is not (usually) the 90o required to be perpendicular.
Perpendicular bisectors of each other.
You could prove this by congruent triangles, but here are two simpler arguments: --------------- Since a square is a rhombus, and the diagonals of a rhombus are perpendicular bisectors of each other, then the diagonals of a square must be perpendicular bisectors of each other -------------------- A square has four-fold rotational symmetry - as you rotate it around the point where the diagonals cross, there are four positions in which it looks the same. This means that the four angles at the centre must be equal. They will each measure 360/4 = 90 degrees, so the diagonals are perpendicular. Also. the four segments joining the centre to a vertex are all equal, so the diagonals bisect each other.
A square is on example. The perpendicular bisectors of the sides and the two diagonals comprie four lines of symmetry.
The diagonals of a square are always perpendicular.