6.5 Flashcards
1
Q
Rhombus
A
Is a parallelogram that has all four sides congruent.
2
Q
Rectangle
A
Is a parallelogram that has four right angles.
3
Q
Square
A
Is a parallelogram that is both a rhombus and a rectangle.
4
Q
Thm. 6.12
A
A parallelogram is a rhombus iff. its diagonals are perpendicular.
5
Q
Thm. 6.13
A
A parallelogram is a rhombus iff. each diagonal bisects a pair of opposite angles.
6
Q
Thm. 6.14
A
A parallelogram is a rectangle iff. its diagonals are congruent.
7
Q
Thm. 6.15
A
A quadrilateral is a rhombus iff. it has four congruent sides.
8
Q
Thm 6.16
A
A quadrilateral is a rectangle iff. it has four right angles
