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Congruent VS Equal

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Geometry Math

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Date created

Mar 1, 2020

Cards (45)

Section 1

(45 cards)

Congruent VS Equal

Front

both words mean the same thing, EQUAL but it's important to understand that in Geometry, objects are congruent and measurements are equal

Back

Postulates AKA Axioms

Front

true statements not requiring proof

Back

Definition

Front

words or terms used to describe new terms/concepts

Back

Vertex

Front

The point of union in an angle or on the side of a shape

Back

Origin

Front

the center of the coordinate plane ( 0 ,0 )

Back

Acute Angle

Front

an angle whose measures is between 0 and 90

Back

Collinear

Front

two points on the same line

Back

Congruent Angles

Front

angles whose angle measurement is equal

Back

Adjacent Angles

Front

are two coplanar angles that have a common side and a common vertex but no common interior points.

Back

Coplanar

Front

on the same plane.

Back

Angle

Front

is formed by two rays with the same endpoint. The two rays are the sides of the angle and the common endpoint is the vertex of the angle

Back

Supplementary Angles

Front

two angles whose sum equals 180 degrees

Back

One-Dimensional Coordinate System

Front

numbers used as locations of points on a number line

Back

Vertical Angles

Front

two angles whose sides are opposite rays. They are also equal

Back

Straight Edge

Front

a tool that looks like a ruler but with no numbers

Back

Ray

Front

is part of a line consisting of one endpoint and all the points of a line on one side of the endpoints

Back

Midpoint of a Line Segment

Front

the point halfway between the endpoints of a line segment

Back

Congruent Segments

Front

line segments whose lengths are equal

Back

Defined Terms

Front

a term that can be defined. there are 3 undefined terms in Geometry

Back

Obtuse Angle

Front

is an angle whose measure is between 90 and 180.

Back

Conjecture

Front

statement believed to be true but not yet proven

Back

Betweenness

Front

A point is between two other points on the same line if its coordinate is between their coordinates

Back

Non-coplanar

Front

not on the same plane

Back

Intersection

Front

the point where two lines cross/meet

Back

Exterior of an Angle

Front

the outside of an angle

Back

Line

Front

a series of points that extends in two opposite directions without end.

Back

Geometric Construction

Front

construction of accurate representations of lengths, angles, and geometric figures using only a straight edge and compass

Back

Compass

Front

a device uses to create a part of or a whole circle

Back

Undefined Terms

Front

terms not formally defined and used to define other terms/concepts in a mathematical system. There are three of these terms in Geometry: point, line, and plane

Back

Point

Front

this is a location and it has no size

Back

Right Angle

Front

an angle that equals 90 degrees exactly

Back

Straight Angle

Front

is an angle whose measure is 180 degrees

Back

Opposite Rays

Front

two collinear rays with the same endpoint

Back

Interior of an Angle

Front

the inside of an angle

Back

Postulate

Front

an accepted statement or fact

Back

Skew Lines

Front

two lines that do not lie in the same plane

Back

Distance AKA Length

Front

the measurement (a #) between two given points - it can never be negative

Back

Angle Measure

Front

the amount of turn there is from one side of the angle to the other

Back

Linear Pair

Front

two adjacent angles that form a line (equals 180 degrees)

Back

Non-collinear

Front

not on the same line

Back

Line Segment

Front

part of a line between two points on the line, the points are called endpoints of the segment

Back

Plane

Front

a flat surface that extends in all directions without end.

Back

Angle Addition Postulate

Front

states that if a point P lies in the interior of ∠RST, then ∠RSP + ∠PST = ∠RST.

Back

Complementary Angles

Front

two angles whose sum (adds up to) 90 degrees

Back

Segment Addition Postulate

Front

states that given two points A and C, a third point B lies on the line segment AC if and only if the distances between the points satisfy the equation AB + BC = AC.

Back