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Alternate Exterior Angles
Angles that lie outside a pair of lines and on opposite sides of a transversal.
Alternate Exterior Angles Converse
if two lines are cut by a transversal so that the alternate exterior angles are congruent, then the lines are parallel
Alternate Interior Angles Converse
if two lines are cut by a transversal so that alternate interior angles are congruent, then the lines are parallel
Alternate Interior Angles Theorem
if two parallel lines are cut by a transversal, then the pairs of alternate interior angles are congruent
Base Angles Theorem
if two sides of a triangle are congruent, then the angles opposite them are congruent
Congruent Complements Theorem
if two angles are complementary to the same angle (or to congruent angles) then the two angles are congruent
Congruent Supplements Theorem
if two angles are supplementary to the same angle (or to congruent angles) then they are congruent
drawing a figure satisfying certain conditions as part of solving a problem or proving a theorem
Consecutive Interior Angles
angles that are on the same side of the transversal and inside the two lines
Consecutive Interior Angles Converse
if two lines are cut by a transversal so that consecutive interior angles are supplementary, then the lines are parallel
Legs of a Right Triangle
in a right triangle the sides that form the right angle are called legs of the right triangle. the side opposite the right angle is the hypotenuse of the triangle
Magnitude of a vector
AB is the distance from the initial point A to the terminal point B, and is written |AB|
measuring stick consisting of a strip of wood or metal or plastic with a straight edge that is used for drawing straight lines and measuring lengths
if a transversal is perpendicular to one of two parallel lines, then it is perpendicular to the other.
hand tool consisting of a flat rigid rectangular bar (metal or wood) that can be used to draw straight lines (or test their straightness)
A basic figure that is not defined in terms of other figures. The undefined terms in Geometry are point, line, and plane.
Remote Interior Angles Theorem
the exterior angles of a triangle euquals the sum of the 2 remote interior angles.
(mathematics) a transformation in which the coordinate axes are rotated by a fixed angle about the origin
(mathematics) a transformation in which the origin of the coordinate system is moved to another position but the direction of each axis remains the same
a straight line segment whose length is magnitude and whose orientation in space is direction
formed by 2 intersecting like and are opposites of each other which means angles are congruent
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