Angles
less than 90 degrees
acute
Name 4 quadrilaterals
square, rectangle, rhombus, trapezoid, parallelogram, kite
number of sides on a quadrilateral
4
These lines never meet
parallel
When two things are the same size and shape, they match perfectly.
congruent
exactly 90 degrees
right
parallelograms have _______of parallel lines
2 pairs
number of pair of parallel sides on a parallelogram
2
The points where two or more edges meet in a shape
vertices
same intersection, across from one another
vertical angle pair
exactly 180 degrees
straight
A line that is straight forming a 90 degree angle with an horizontal line
perpendicular
number of right angles in a rhombus
4 sides
No right angles
Opposite sides are parallel
All sides are equal
rhombus
supplementary and adjacent
linear pair
91 degrees to 179 degrees
obtuse
two pairs of adjacent sides are equal
kite
A square is quite special. It can be classified in many ways. Name them.
polygon, quadrilateral, parallelogram, rectangle, and rhombus
Is a quadrilateral. Does not have 4 right angles but two sets of opposite angles the same degree
parallelogram and rhombus
same position, different intersection
corresponding angle pair
angles in squares
right
Opposite interior angles are equal
parallelogram and rhombus
define a trapezoid ...
A trapezoid is a _____, and a ______, with _____ sides, and ____________________.
polygon, quadrilateral, 4, exactly one pair of parallel sides
a polygon with an unknown number of sides
n-gon
adjacent, same intersection
linear pair