Yes, if you count four congruencies as six pairs.
No.
It can be :- 1- a parallelogram 2- Square if diagonals are perpendicular and congruent 3- Rectangle if diagonals are congruent 4- Rhombus if diagonals are perpendicular
because it has two pairs of congruent sides, the diagonals are equal in length, and the diagonals bisect each other.
triangle
yes
No.
It can be :- 1- a parallelogram 2- Square if diagonals are perpendicular and congruent 3- Rectangle if diagonals are congruent 4- Rhombus if diagonals are perpendicular
because it has two pairs of congruent sides, the diagonals are equal in length, and the diagonals bisect each other.
False. There are 6 pairs of smaller congruent triangles and two pair of larger ones.
The definition of a rectangle: A figure that has 4 right angles, has congruent diagonals that bisect, has 2 pairs of parallel sides, and has 2 pairs of opposite congruent angles. A square has all of the above, and thus, is a rectangle by definition.
triangle
Four.
4
yes
4 congruent pairs
All sides of a square are congruent.
From Wikipedia: '...a kite, or deltoid, is a quadrilateral with two disjoint pairs of congruent adjacent sides, in contrast to a parallelogram, where the congruent sides are opposite.' In other words, a kite consists of two isosceles triangles joined at the base. Beginning with a particular isosceles triangle, it will always be possible to construct from it one kite that has equal diagonals (given that the kite may be either convex or concave). Hence an infinite number of kites do have equal diagonals, but many do not. A notable example of a kite that does have equal diagonals is a square.