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  1. irp-cdn.multiscreensite.com › uploaded › Gr8_Maths_Geometry_1_angles_linesGeometry (Part 1) Lines and angles

    Lines and angles. A line is an infinite number of points between two end points. Where two lines meet or cross, they form an angle. An angle is an amount of rotation. It is measured in degrees. Types of angles. Name of angle. Example.

  2. Same-side Interior Angles Theorem If two parallel lines are intersected by a transversal, then same-side interior angles are supplementary. Converse of Alternate Interior Angles Theorem If two lines are intersected by a transversal and alternate interior angles are equal in measure, then the lines are parallel Converse of Alternate Exterior Angles

  3. DEFINITION: An angle of intersection of m and k and one of n and k are alternate interior angles if their transversal sides are opposite directed and intersecting, and if their non-transversal sides lie on opposite sides of A . Two of these angles are corresponding angles if their transversal sides

  4. Definition 3. A circle is a plane figure contained by a single line, called the circumference, such that all straight line segments from one point, called the center, to the circumference are equal to each other. Problem 1.1. Using similar words, define what is a surface and a plane.

  5. lrc.ashworthcollege.edu › 03 › Geometry-Lesson-6-Interior-and-Exterior-AnglesGeometry - Learning Resource Center

    interior angle is formed by two sides of a triangle. An exterior angle is formed by one side of the triangle and extension of an adjacent side. 4 is an exterior angle. 3 is an interior angle. Each exterior angle has two remote interior angles.

  6. Angle-Side-Angle (ASA) Congruence Postulate: If two angles and the included side of one triangle are congruent to two angles and the included side of a second triangle, then the two triangles are congruent. Theorems 4.1 Triangle Sum Theorem: The sum of the measures of the interior angles of a triangle is 180 o.

  7. GENERAL ANGLE PROPERTIES OF GEOMETRIC FIGURES Definitions. Definitions. Acute angles . These are angles that are less than 900. Obtuse angles . These are angles which lie between 900 and 1800 . Reflex angles. These are angles greater than 1800 but less than 3600. Right angles. They are angles with exactly 900.

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