| A | B |
|---|
| Rectangle | quad. with 4 right angles |
| Rectangle | diagonals are congruent |
| Rhombus | quad. with 4 congruent sides |
| Rhombus | diagonals are perpindicular |
| Rhombus | diagonals bisects 2 angles |
| Square | quad. with 4 right angles and 4 congruent sides |
| Square | is a rectangle, rhombus, and ll-ogram |
| Square | is regular |
| Regular | equilateral and equiangular |
| Opposite sides are ll | parallelogram; rect; rhombus; and square |
| Opposide sides are congruent | parallelogram, rectangle; rhombus and square |
| Opposite angles are congruent | parallelogram; rectangle;rhombus;square |
| a diagonal forms 2 congruent triangles | parallelogram;rhombus;rectangle; square |
| diagonals bisect each other | parallelogram; rectangle; rhombus;square |
| diagonals are congruent | rectangle and square isosceles trapezoid |
| diagonals are perpindicular | rhombus and square |
| a diagonal bisects 2 angles | rhombus and square |
| all angles are right angles | rectangle and square |
| all sides congruent | rhombus and square |
| Trapezoid | a quad. with exactly one pair of ll sides |
| Bases | parallel sides or a trapezoid |
| legs | the nonparallel sides of a trapezoid |
| isosceles trapezoid | a trapezoid with congruent legs |
| median of a trapezoid | the segment that joins the midpoints of the legs |
| the median of a trapezoid (2 things) | 1. is ll to bases 2. has length= 1/2 sum of bases |
| the base angles are ocngruent | isosceles trapezoid |
| congruent legs | isosceles trapezoid |
| on pair ll sides | trapezoid and isosceles trapezoid |
| The segment that joins the midpoints of 2 sides of a triangle-2 | 1. is ll to the third side; 2. is half as long as the third side |
| if 3 ll lines cut off congruent segments on 1 transversal | then they cut off congruent segment on every transversal |
| A line that contains the midpoin of 1 side of a triangle and is parallel to another side | passes through the midpoint of the third side |
| if 2 lines are parallel- | then all points on one line are equidistant from the other line |
| each diagonal of a rhombus | bisects 2 angles of the rhombus |
| The midpoint of the hypotenuse of a right triangle | is equidistant from the 3 vertices |
| if 2 consecutive sides of a parallelogram are congruent | then the parallelogram is a rhombus |
