6.2.1 Properties of Special Parallelograms Flashcards
1
Q
rectangle
A
a quadrilateral with four right angles
2
Q
square
A
a quadrilateral with four right angles and four congruent sides.
3
Q
rhombus
A
a quadrilateral with four congruent sides
4
Q
Theorem
A
If a quadrilateral is a rectangle, then it is a parallelogram.
5
Q
Theorem
A
If a parallelogram is a rectangle, then its diagonals are congruent.
6
Q
Theorem
A
If a quadrilateral is a rhombus, then it is a parallelogram.
7
Q
Theorem
A
If a parallelogram is a rhombus, then its diagonals are perpendicular.
8
Q
Theorem
A
If a parallelogram is a rhombus, then each diagonal bisects a pair of opposite angles
