Geometry Vocabulary Flashcards
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Questions and Answers

What is a line?

  • An angle whose measure is less than 90
  • A flat figure with no thickness
  • Two end points and all the points in between them
  • The set of all points collinear to two points (correct)
  • What defines a segment?

    Two end points and all the points in between them

    What is a plane?

    A flat figure with no thickness that extends indefinitely in all directions

    What is a ray?

    <p>A line with a single endpoint that extends infinitely in one direction</p> Signup and view all the answers

    What is an acute angle?

    <p>An angle whose measure is less than 90</p> Signup and view all the answers

    What is a vertex in geometry?

    <p>Point in common of two rays that form an angle</p> Signup and view all the answers

    What is a midpoint?

    <p>The middle point of the line segment</p> Signup and view all the answers

    What is an obtuse angle?

    <p>An angle whose measure is greater than 90 and less than 180</p> Signup and view all the answers

    What are complementary angles?

    <p>The sum of two angles whose measures is 90</p> Signup and view all the answers

    What are supplementary angles?

    <p>The sum of two angles whose measures is 180</p> Signup and view all the answers

    What defines an angle?

    <p>Two non-collinear rays with a common endpoint</p> Signup and view all the answers

    What does perpendicular mean?

    <p>Lines that meet at a 90 degree angle</p> Signup and view all the answers

    What are vertical angles?

    <p>Two non-adjacent angles formed by two intersecting lines</p> Signup and view all the answers

    What is a straight angle?

    <p>An angle formed by opposite rays</p> Signup and view all the answers

    What does congruent mean in geometry?

    <p>Geometric elements of equal measure</p> Signup and view all the answers

    What does coplanar mean?

    <p>Points that lie on the same plane</p> Signup and view all the answers

    What does collinear mean?

    <p>Points on the same line</p> Signup and view all the answers

    What does adjacent mean?

    <p>Two angles with a common side but no common interior points</p> Signup and view all the answers

    What defines a point in geometry?

    <p>A precise location or place on a plane, usually represented by a dot</p> Signup and view all the answers

    What are parallel lines?

    <p>Coplanar lines that do not intersect</p> Signup and view all the answers

    What is a bisector?

    <p>The line that divides something into two equal parts</p> Signup and view all the answers

    What does intersecting mean?

    <p>Two or more lines that meet or cross at a point</p> Signup and view all the answers

    What is the origin in a coordinate plane?

    <p>(0, 0)</p> Signup and view all the answers

    What is a coordinate plane?

    <p>A plane that is divided into four regions by the x-axis and y-axis</p> Signup and view all the answers

    What is a quadrant?

    <p>One of four sections into which the coordinate plane is divided</p> Signup and view all the answers

    What is distance in geometry?

    <p>The length of a path between two points</p> Signup and view all the answers

    What are skew lines?

    <p>Lines that do not intersect and are not coplanar</p> Signup and view all the answers

    Study Notes

    Geometry Vocabulary Study Notes

    • Line: A set of points collinear to two distinct points, extending infinitely in both directions.

    • Segment: Consists of two endpoints and all points in between, representing a finite portion of a line.

    • Plane: A flat, two-dimensional figure with no thickness that extends indefinitely in all directions.

    • Ray: A line that has one endpoint (or point of origin) and extends infinitely in one direction.

    • Acute Angle: An angle measuring less than 90 degrees.

    • Vertex: The common point where two rays meet to form an angle.

    • Midpoint: The exact middle point of a line segment, equidistant from both endpoints.

    • Obtuse Angle: An angle that is greater than 90 degrees but less than 180 degrees.

    • Complementary Angles: Two angles whose measures add up to 90 degrees.

    • Supplementary Angles: Two angles whose measures add up to 180 degrees.

    • Angle: Formed by two non-collinear rays that share a common endpoint, known as the vertex.

    • Perpendicular Lines: Lines that intersect to form a right angle (90 degrees).

    • Vertical Angles: Two non-adjacent angles created when two lines intersect, having equal measures.

    • Straight Angle: An angle formed by opposite rays, measuring exactly 180 degrees.

    • Congruent: Geometric elements (angles, segments) that are of equal measure.

    • Coplanar Points: Points that lie within the same geometric plane.

    • Collinear Points: Points that lie on the same straight line.

    • Adjacent Angles: Two angles that share a common side and have no interior points in common.

    • Point: A precise location in a plane, typically represented by a dot; has no dimensions.

    • Parallel Lines: Coplanar lines that never intersect and remain equidistant from each other.

    • Bisector: A line that divides an angle or segment into two equal parts.

    • Intersecting Lines: Lines that meet or cross at a single point.

    • Origin: The point in the coordinate plane represented by (0,0).

    • Coordinate Plane: A two-dimensional plane divided into four regions by a horizontal line (x-axis) and a vertical line (y-axis).

    • Quadrant: One of the four sections formed in the coordinate plane.

    • Distance: The length of the shortest path between two points, measurable in units.

    • Skew Lines: Lines that do not intersect and are not coplanar.

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    Description

    This quiz consists of flashcards covering essential vocabulary terms in geometry such as line, segment, plane, and ray. Each term includes a precise definition to help reinforce understanding of geometric concepts. Perfect for students looking to enhance their geometry skills!

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