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33 Cards in this Set

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  • Back
rhombus
a quadralateral whose sides are all equal and have two sets of parallel sides
rectangle
a quadralateral that has two sets of parllel sides and whose angles are all equal
square
a quadralateral whose sides and angles are all equal and has two sets of parallel sides
right angle
an angle that is exactly 90 degrees
acute angle
an angle that is less than 90 degrees
obtuse angle
an angle tha tis more than 90 degrees
midpoint of a segment
a point that is halfway between the two endpoints of a segment
angle bisector
a ray cutting an angle exactly in half so that the angle is equal on either side of the ray
parallel lines
two or more lines that never intersect on one plane
perpendicular liens
two lines that intersect at a 90 degree angle
pair of complementary angles
two angles whose measures add up to 90 degrees
pair of supplementary angles
two angles whose measures add up to 180 degrees
pair of vertical angles
two non-adjacent angles that share a vertex and are formed by two intersecting lines
linear pair of angles
two angles that share a common line and have the same vertex, formed by two lines
skew
lines that don't meet and are on different planes
diagnols of polygons
a segment that connects two onon adjacent vertexes in a polygon
equilateral polygon
a polygon whose sides are all equal
equiangular polygon
a polygon whose angles are all equal
regular polygon
a polygon whose sides and angles are equal
right triangle
a triangle with one 90 degree angle
acute triangle
a triangle whose angles are all less than 90 degrees
obtuse triangle
a triangle with one angle more than 90 degrees
scalene triangle
a triangle with no equal sides
isosceles triangle
a triangle with two or more equal sides
median of a triangle
a segment coming form the vertex angle that divides the opposite side in half
altitude of a triangle
a segment connecting a vertex to the opposite side or the opposite side extended forming a 90 degree angle
trapezoid
a quadralateral witha pair of parallel sides
kite
a quadralateral with two pairs of equal sides adjacent to each other
parallelogram
a qudralateral with two pairs of non adjacent parallel lines
collinear points
two or more points on the same line
coplanar points
three or more points on the same plane
space
the set of all points
congruent
have the same measure