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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.
Interior angles are those that lie inside a polygon. For example, a triangle has 3 interior angles. The other way to define interior angles is "angles enclosed in the interior region of two parallel lines when intersected by a transversal are known as interior angles". How to Find the Sum of Interior Angles?
This set of worksheets concentrates on the interior angles of polygons. Interior angles of a polygon are the angles that are found inside the polygon. By definition all the interior angles of a regular polygon are the same, if it is a uniform shape.
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.
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 General Rule. Each time we add a side (triangle to quadrilateral, quadrilateral to pentagon, etc), we add another 180° to the total: So the general rule is: Sum of Interior Angles = (n −2) × 180 °. Each Angle (of a Regular Polygon) = (n −2) × 180 ° / n. Perhaps an example will help: Example: What about a Regular Decagon (10 sides) ?
Interior and exterior angles worksheet will help students in building upon clear concepts with angles in geometry. The angles within a geometrical figure are termed interior while outside of the figure are called exterior angle.
