Study your flashcards anywhere!
Download the official Cram app for free >
 Shuffle
Toggle OnToggle Off
 Alphabetize
Toggle OnToggle Off
 Front First
Toggle OnToggle Off
 Both Sides
Toggle OnToggle Off
 Read
Toggle OnToggle Off
How to study your flashcards.
Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key
Up/Down arrow keys: Flip the card between the front and back.down keyup key
H key: Show hint (3rd side).h key
A key: Read text to speech.a key
13 Cards in this Set
 Front
 Back
Theorem 7.1

If a quadrilateral is a parallelogram, then its opposite sides are congruent.


Theorem 7.12

A parallelogram is a rectangle if and only if its diagonals are congruent.


Theorem 7.3

If a quadrilateral is a parallelogram, then its consecutive angles are supplementary


Theorem 7.10

A parallelogram is a rhombus if and only if its diagonals are perpendicular.


Theorem 7.5

Converse of 7.1


Theorem 7.8

Converse of 7.4


Theorem 7.7

Converse of 7.3


Theorem 7.6

Converse of 7.2


Theorem 7.9

If one pair of opposite sides of a quadrilateral are congruent and parallel, then the quadrilateral is a parallelogram.


Theorem 7.4

If a quadrilateral is a parallelogram, then its diagonals bisect each other.


Theorem 7.11

A quadrilateral is a rhombus if and only if each diagonal bisects a pair of opposite angles.


Theorem 7.2

If a quadrilateral is a parallelogram, then its opposite angles are congruent.


Theorem 7.13

A parallelogram is a square if and only if its diagonals are both perpendicular and congruent.
