unit 5 stuff idk man Flashcards
Parallelogram
A quadrilateral w/ both pairs of opp. sides parallel
If a quadrilateral is a parallelogram (1)
Then the opp. sides are congruent
If a quadrilateral is a parallelogram (2)
Then opp. angles are congruent
If a quadrilateral is a parallelogram (3)
Then its diagonals bisect each other
If both pairs of opp. sides of a quad. are congruent,
Then the quad. is a parallelogram
If both pairs of opp. angles of a quad. are congruent
Then the quad. is a parallelogram
If the diagonals of a quad. bisect each other,
Then the quad. is a parallelogram
If one pair of opp. sides of a quad are both congruent and parallel,
Then the quad. is a parallelogram
If two lines are parallel
Then all points on one line are equidistant from the other line
If 3 parallel lines cut off congruent segments on one transversal,
Then they cut off congruent segments on every transversal
A line that contains the midpoint of one side of a triangle and is parallel to another side,
passes through the midpoint of the third side
The segment that joins the midpoints of two sides of a triangle is (2 THINGS)
- Parallel to the third side
- Is half as long as the third side
Rectangle (DEF)
A quad. with 4 right angles
Rhombus (DEF)
A quad. with 4 congruent sides
Square (DEF)
A quad. with 4 right angles and 4 congruent sides