Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
44 Cards in this Set
- Front
- Back
|
altitude of a triangle
|
Segment that is perpendicular from a vertex to the lince containing the opposite side
|
|
|
angle bisector of a triangle
|
Segment that bisects an angle of a triangle and has one endpoint on the opposite side
|
|
|
CPCTC
|
"Corresponding parts of congruent triangles are congruent"
|
|
|
congruent triangles
|
Triangles whose corresponding angles and corresponding sides are congruent
|
|
|
distance from a point to a line
|
Length of the perpendicular from the point to the line.
|
|
|
median of a triangle
|
segment that extends from a vertex to the midpoint of the opposite side
|
|
|
hypotenuse
|
Side of a right triangle that is opposite right angle
|
|
|
legs of a right triangle
|
Sides opposite the acute angles
|
|
|
right triangle
|
triangle with one right angle
|
|
|
acute angle
|
angle whose measure is between 0 and 90
|
|
|
acute triangle
|
triangle with three acute angles
|
|
|
adjacent angles
|
two coplanar angles that have a common vertex,a common side, and no common interior points
|
|
|
alternate exterior angles
|
pair of nonadjacent angles, both exterior, on opposite sides of the transversal
|
|
|
alternate interior angles
|
pair of nonadjacent angles, both interior, on opposite sides of the transversal
|
|
|
angle
|
union of two noncollinear rays with a common endpoint
|
|
|
auxiliary line
|
lines, segments, rays, or points added to a figure in order to facilitate a proof or an understanding of a problem
|
|
|
between points
|
Given three collinear points X, Y, and Z, Y is between X and Z if and only if XY+YZ=XZ
|
|
|
between rays
|
Given three cooplanar rays OA, OT, and OB, OT is between OA and OB if and only if: m of AOT+m of TOB=m of AOB
|
|
|
biconditional
|
"If and only if" statement formed by combining a conditional and its converse into one statement
|
|
|
angle bisector
|
ray that seperates an angle into two angles of egual measures
|
|
|
segment bisector
|
any line, segment, ray, or plane that intersects a segment at its midpoint
|
|
|
collinear
|
points that lie on the same line
|
|
|
complementary angles
|
two angles whose measures sum to 90
|
|
|
conclusion
|
"Then" part of a conditional statement
|
|
|
conditional
|
statement formed by joining two statements, p and q, with the words if and then
|
|
|
congruent angles
|
angles that have egual measures
|
|
|
congruent segments
|
segments having equal measures
|
|
|
contrapositive
|
statement related to a conditional statemtn in the form: If ~q, then ~p
|
|
|
converse
|
statement related to a to a conditional statement in the form:If q, then p
|
|
|
convex polygon
|
polygon in which the lines containing the sides do not contain points in the polygon's interior
|
|
|
coordinate
|
number paired with each point on a number line
|
|
|
coplanar
|
points that lie on the same plane
|
|
|
corollary
|
theorem whose justification follows from another theorem
|
|
|
corresponding angles
|
pair of nonadjacent angles--one interior, one exterior--both on the same side of the transversal
|
|
|
decagon
|
a 10-sided polygon
|
|
|
deductive reasoning
|
reasoning logically from given statements to a desired conclusion
|
|
|
diagonal (of a polygon)
|
segment that joins two nonconsecutive vertices
|
|
|
distance
|
absolute value of the difference of the cooridinates of two distinct points on a line
|
|
|
edge (plane)
|
line that separates a plane into two half-planes
|
|
|
equiangular triangle
|
triangle in which all angles are congruent
|
|
|
equilateral triangle
|
triangle in which all sides are congruent
|
|
|
formal proof
|
a logical argument in which each statement requires justification
|
|
|
Given
|
hypothesis of a proof
|
|
|
half-planes
|
two halves of a plane that are separated by a line
|
