logging in or signing up Angles formed by Parallel lines girishsir Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: Embed: Flash iPad Dynamic Copy Does not support media & animations Automatically changes to Flash or non-Flash embed WordPress Embed Customize Embed URL: Copy Thumbnail: Copy The presentation is successfully added In Your Favorites. Views: 3229 Category: Education License: All Rights Reserved Like it (4) Dislike it (0) Added: June 11, 2010 This Presentation is Public Favorites: 2 Presentation Description Three main types of angles are formed by parallel lines - 1. Corresponding angles 2. Alternate angles and 3. Interior angles Here it is explained how to Identify these three types of angles Comments Posting comment... Premium member Presentation Transcript Slide 1: PARALLEL LINES 6/11/2010 MATH GIRISH RAO If two lines are drawn in a plane such that they do not intersect, even when extended indefinitely in both directions, then such lines are called as parallel lines. A line which intersects two distinct lines in a plane in exactly two points is called a transversal. Slide 2: When a transversal intersect two parallel lines, we get following types of angles Corresponding Angles Alternate Angles Co – interior angles Linear pair of Angles (Adjacent Angles) Vertically opposite Angles Out of the five types, let us see angles of first three types 6/11/2010 MATH GIRISH RAO Slide 3: 6/11/2010 MATH GIRISH RAO Corresponding angles They are “F” shaped angles. Slide 4: 6/11/2010 MATH GIRISH RAO Slide 5: 6/11/2010 MATH GIRISH RAO Slide 6: 6/11/2010 MATH GIRISH RAO Slide 7: When a pair of parallel lines are intersected by the transversal we get four pairs of Corresponding angles as shown in the figure Corresponding angles have same measure 6/11/2010 MATH GIRISH RAO Slide 8: 6/11/2010 MATH GIRISH RAO Alternate angles. They are “Z” shaped angles Slide 9: 6/11/2010 MATH GIRISH RAO Slide 10: 6/11/2010 MATH GIRISH RAO When a pair of parallel lines are intersected by the transversal we get two pairs of interior Alternate angles as shown in the figure Alternate angles have same measure Slide 11: 6/11/2010 MATH GIRISH RAO Co – interior angles. This are “ [ “ shaped angles Slide 12: 6/11/2010 MATH GIRISH RAO Slide 13: 6/11/2010 MATH GIRISH RAO When a pair of parallel lines are intersected by the transversal we get two pairs of interior co – Interior angles as shown in the figure. The sum of co-interior angles is always 1800 You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
Angles formed by Parallel lines girishsir Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: Embed: Flash iPad Dynamic Copy Does not support media & animations Automatically changes to Flash or non-Flash embed WordPress Embed Customize Embed URL: Copy Thumbnail: Copy The presentation is successfully added In Your Favorites. Views: 3229 Category: Education License: All Rights Reserved Like it (4) Dislike it (0) Added: June 11, 2010 This Presentation is Public Favorites: 2 Presentation Description Three main types of angles are formed by parallel lines - 1. Corresponding angles 2. Alternate angles and 3. Interior angles Here it is explained how to Identify these three types of angles Comments Posting comment... Premium member Presentation Transcript Slide 1: PARALLEL LINES 6/11/2010 MATH GIRISH RAO If two lines are drawn in a plane such that they do not intersect, even when extended indefinitely in both directions, then such lines are called as parallel lines. A line which intersects two distinct lines in a plane in exactly two points is called a transversal. Slide 2: When a transversal intersect two parallel lines, we get following types of angles Corresponding Angles Alternate Angles Co – interior angles Linear pair of Angles (Adjacent Angles) Vertically opposite Angles Out of the five types, let us see angles of first three types 6/11/2010 MATH GIRISH RAO Slide 3: 6/11/2010 MATH GIRISH RAO Corresponding angles They are “F” shaped angles. Slide 4: 6/11/2010 MATH GIRISH RAO Slide 5: 6/11/2010 MATH GIRISH RAO Slide 6: 6/11/2010 MATH GIRISH RAO Slide 7: When a pair of parallel lines are intersected by the transversal we get four pairs of Corresponding angles as shown in the figure Corresponding angles have same measure 6/11/2010 MATH GIRISH RAO Slide 8: 6/11/2010 MATH GIRISH RAO Alternate angles. They are “Z” shaped angles Slide 9: 6/11/2010 MATH GIRISH RAO Slide 10: 6/11/2010 MATH GIRISH RAO When a pair of parallel lines are intersected by the transversal we get two pairs of interior Alternate angles as shown in the figure Alternate angles have same measure Slide 11: 6/11/2010 MATH GIRISH RAO Co – interior angles. This are “ [ “ shaped angles Slide 12: 6/11/2010 MATH GIRISH RAO Slide 13: 6/11/2010 MATH GIRISH RAO When a pair of parallel lines are intersected by the transversal we get two pairs of interior co – Interior angles as shown in the figure. The sum of co-interior angles is always 1800