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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.
INTERIOR AND EXTERIOR ANGLES – PRACTICE QUESTIONS 1. Pictured below is a regular pentagon. Find the interior and exterior angles of a regular pentagon. 2. Pictured below is a regular hexagon. Find the interior and exterior angles of a regular hexagon.
Alternate Interior Angles: These angles are congruent angles located between the parallel lines in the interior region and on opposite sides of the transversal & at different vertices.
Hone your skills in finding the measure of each individual interior angle with this set of printable worksheets featuring regular polygons with ≤ 20 sides. The problems are offered as geometrical shapes and in the word format.
Triangle - Interior Angle. Example: I. 40. K. x+20. x J. Sum of the interior angles = 180. Sum of the interior angles = 40 + x + 20 + x 180 = 60 + 2 x 2x = 180 - 60 = 120.
The definitions for interior angles and exterior angles can be extended to include angles formed in any polygon. In the diagrams shown below, interior angles are red, and exterior angles are blue. interior angles. exterior angles. Activity 8.2 suggests the Polygon Interior Angles Theorem shown below. THEOREM 8.1. Polygon Interior Angles Theorem.
The angles that lie inside a shape, generally, a polygon, are said to be interior angles, or the angles that lie in the area enclosed between two parallel lines that are intersected by a transversal are also called interior angles. Learn more about interior angles in this article.
