| A | B |
|---|
| Isosceles Trapezoid | Legs are congruent |
| Median of a trapezoid | = the average of the bases |
| Definition of a trapezoid | exactly one pair of parallel sides |
| Measure of an exterior angle of a triangle | > the measure of either remote interior angles |
| Sum of the lengths of any 2 sides of triangle | > than the length of the third side |
| Inverse operations | Square and Square Root |
| A trapezoid is never | a parallelogram |
| Base angles are congruent | for all isosceles triangles |
