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Geometry

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Section 1

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Opposite rays

Front

1 / 31

Geometry Math

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Last updated

6 years ago

Date created

Mar 14, 2020

Cards (31)

Section 1

(31 cards)

Opposite rays

Front

two rays which have the same endpoint and which extend in opposite directions

Back

Straightedge

Front

tool used to draw straight line segments

Back

Undefined terms

Front

terms in Euclidean geometry which mathematicians consider only described

Back

Adjacent angles

Front

two angles who share a common side and vertex and do not overlap their interior space

Back

Vertical angles

Front

two angles created by intersecting lines, segments, or rays who share a common vertex, are "opposite" to each other, and have the same degree measure

Back

Distance

Front

the length of a segment between two points or its endpoints

Back

Midpoint

Front

the point in the center of a segment

Back

Complementary angles

Front

two angles whose sum equals 90 degrees

Back

Reflex angle

Front

an angle whose measure is greater than 180 degrees and less than 360 degrees

Back

Compass

Front

tool used to draw rays and circles

Back

Distance formula

Front

on a number line, D = |a-b|; in a coordinate, D =

Back

Congruent segments

Front

segments which have the same length

Back

Theorem

Front

a statement which has been proven

Back

Vertex

Front

the point formed when two segments or rays intersect iin an angle

Back

Protractor

Front

tool used to measure angles

Back

Segment

Front

a part of a line with endpoints

Back

Ray

Front

a part of a line which has one endpoint and the other end extends without limit

Back

Angle

Front

figure formed by two segments or rays with a common end point

Back

Midpoint formula

Front

on a number line, M = (a+b)/2; in a coordinate plane, M =

Back

Euclidean Geometry

Front

identifies a geometry which Euclid formalized and which was adapted for our use

Back

Supplementary angles

Front

two angles whose sum equals 180 degrees

Back

Right angle

Front

an angle whose measures is 90 degrees

Back

Line

Front

one of the undefined terms; it is composed of an infinite series of points; it has length but no width or thickness and extends without limit in two directions

Back

Plane

Front

one of the undefined terms; it has length and width but has no thickness; it is usually represented by a parallelogram

Back

Straight angle

Front

an angle whose measure is 180 degrees

Back

Obtuse angle

Front

an angle with a measure greater than 90 degrees and less than 180 degrees

Back

Geometry

Front

word composed of two Greek terms, "geos" meaning earth and "metros" meaning to measure

Back

Linear pair

Front

two angles who share a common vertex and whose exterior sides form a straight angle

Back

Point

Front

one of the undefined terms; it has only position and has no lenth, width or thickness; it is represented by a dot

Back

Acute angle

Front

an angle with a measure greater than 0 degrees and less than 90 degrees

Back

Postulate

Front

a statement that is accepted as fact

Back