final vocab Flashcards
Circumcenter
3 perpendicular bisectors
incenter
3 angle bisectors
centroid
3 medians
orthocenter
the intersection of the 3 altitudes
Trapezoid
At least one pair of opposite sides are parallel
Is a parallelogram, rhombus, or rectangle
Parallelogram
Opposite sides are parallel
Both pairs of opposite sides are parallel
Both pairs of opposite sides are congruent
Both pairs of opposite angles are congruent
One pair of opposite sides is parallel AND congruent
Diagonals bisect each other
Is a rhombus or a rectangle
Rhombus
Four congruent sides
Is a parallelogram AND diagonals are perpendicular
Diagonals bisect the vertex angles
Rectangle
Four right/congruent angles
Is a parallelogram AND diagonals are congruent
Square
Four congruent sides AND four right/congruent angles
Is a rhombus AND is a rectangle
which transformation is not a rigid motion
dilation
parallel lines
equal slopes
perpendicular lines
negative reciprocal slope
