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GEOMETRY FINAL 1 VOCAB REVIEW
Terms in this set (44)
angles whose measure is >0 degrees and <90 degrees
two coplanar angles that have a common side and a common vertex but no common interior points
Alternate Exterior Angles -
Angles that lie outside a pair of lines and on opposite sides of a transversal.
Alternate interior angles
angles between 2 lines and on opposite sides of a transversal
a ray that divides an angle into two congruent angles
Base angle of a triangle
either of the angles of a triangle that have one side in common with the base
Base of a Triangle
The side of a triangle which is perpendicular to the altitude.
the combination of a conditional statement and its converse, includes "if and only if"
The point of concurrency of the medians of a triangle.
points that lie on the same line
Two angles whose sum is 90 degrees
An if-then statement; if p then q
Consecutive Interior Angles
interior angles that lie on the same side of the transversal, are supplementary
If not q, then not p
the statement formed by exchanging the hypothesis and conclusion of a conditional statement, if q, then p.
Figures in the same plane
lie on the same side of the transversal and in corresponding positions
an example showing that a statement is false
Exterior angle of a Polygon
an angle formed by a side and an extension of an adjacent side
the side of a right triangle opposite the right angle
The part that follows the "if" in a conditional statement.
If not p, then not q
Leg of a Triangle
Either of the two shorter sides of a right triangle. These two sides together form the right angle in the right triangle.
A pair of adjacent angles whose noncommon sides are opposite rays.
Midsegment of a Trapezoid
a segment that connects the midpoints of the legs of a trapezoid
Midsegment of a Triangle
segment that connects the midpoints of two sides of a triangle
the opposite of the original statement
An angle that measures more than 90 degrees but less than 180 degrees
two rays that have a common endpoint and form a line
lines in the same plane that never intersect
Point Slope Form
One endpoint and all the points of the line on one side of the endpoint.
a polygon that is both equilateral and equiangular
Remote Interior Angles
the angles of a triangle that are not adjacent to a given exterior angle
an angle that measures 90 degrees
A triangle with no congruent sides
A part of a line consisting of two endpoints and all points between them.
a line, ray, segment, or plane that divides a segment into two congruent segments
the steepness of a line on a graph, equal to its vertical change divided by its horizontal change
an angle that measures 180 degrees
two angles whose sum is 180.
a line that intersects two or more lines
A pair of opposite congruent angles formed by intersecting lines
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