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Vocabulary and Definitions for Geometry 302

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Course
MATH302

Institution
Old Dominion University

These are vocabulary words I found and noticed repeat throughout the semester. I found the vocabulary words in the eBook provided by the class. The vocabulary words are covered from chapter 1 to chapter 5.

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Uploaded on December 31, 2024
Number of pages 8
Written in 2024/2025
Type Class notes
Professor(s) Loretta alsop
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GEOMETRY VOCABULARY AND DEFINITION

Set: Any collection of objects, numbers, or points.

Line Segment: Part of the line determined by 2 points and all points on the
line that lies between the 2 points

Intersection: The elements that 2 sets have in common; the points that the
2 geometric figures share

Ray: Part of a line that starts at a point and extends infinitely

Union: Joining together of any 2 sets (Think marriage)

Angle: Plane figure formed by 2 rays that share a common endpoint

Hypothesis: The “IF” portion of an “If-Then” statement. Also part of the
theorem that provides the GIVEN for any proof.

Conclusion: The “THEN” portion of an “If-Then” statement. Also part of the
theorem that provides the PROVE for any proof.

Congruent: Figures (such as angles) that can be made to coincide

Intuition: A way of drawing conclusions through insights (Think gut-feeling)

Midpoint: Point on a line that separates the line into 2 congruent lines

, Right Angles: Angles that have a measure of 90 degrees.

Valid Argument: An argument made where conclusion follows logically
from previously acceptable assumptions

Deduction: A way of drawing conclusions using established principles

Straight Angle: An angle that has a measure of 180 degrees

Induction: A way of drawing conclusions using specific observations or past
experiences

Collinear: Points that lie on the same line

Bisect: A ray that separates given angles into 2 smaller, congruent angles

Arc: Part of a circle determined by 2 points on a circle and every point
between them.

Radius: A line segment joined at the center of the circle to a point on the
circle

Intersect: Elements that 2 sets have in common.

Postulates: A statement assumed to be true

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