DSERT - 7 - Maths :: Pair of Lines

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Go To: DSERT-Mathematics-Grade 7

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[Author - Kripa S]


Objective: Introduce different types of lines and their properties

Subtopics to be covered:

- Difference between line and line segment

- Types of lines -> intersecting, parallel, perpendicular, transversal

- Angles made by a transversal on parallel lines

Learning Outcome:

- Students can identify type of line or angle from a given set

- Students can solve problems to find measure of angles in a given figure


[Author - Kripa S]


https://www.youtube.com/watch?v=ubOyrS7KuXE (Intersecting lines - English)

https://www.youtube.com/watch?v=WsB7ACS1bzY (types of lines - English)


[Author - Kripa S]


Take a ruled sheet of paper. Draw (in thick colour) two parallel lines l and m. Draw a transversal t to the lines l and m. Place a tracing paper over the figure drawn. Trace the lines l, m and t. Slide the tracing paper along t, until l coincides with m. You find that angle '1' on the traced figure coincides with angle '2' of the original figure. Observe and see if there are any other angles that are coinciding


[Contributor - Abhay Karjol]

Term' Transliterated Term' Translated Term
Pair of lines ಪೇರ್ ಆಫ್ ಲೈನ್ಸ್ ಜೋಡಿ ರೇಖೆಗಳು
Intersecting lines ಇಂಟರ್ಸೆಕ್ಟಿಂಗ್ ಲೈನ್ಸ್ ಛೇದಕ ರೇಖೆಗಳು
Parallel lines ಪ್ಯಾರಲಲ್ ಲೈನ್ಸ್ ಸಮಾನಾಂತರ ರೇಖೆಗಳು
Transversal line ಟ್ರಾನ್ಸ್ಪರ್ಸಲ್ ಲೈನ್ ಪ್ರಚ್ಛೇದಕ ರೇಖೆ
Corresponding angles ಕರೆಸ್ಪಾಂಡಿಂಗ್ ಆಂಗಲ್ಸ್ ಅನುರೂಪ ಕೋನಗಳು
Alternate angles ಆಲ್ಟರ್ನೇಟ್ ಆಂಗಲ್ಸ್ ಪರ್ಯಾಯ ಕೋನಗಳು
Interior angles ಇಂಟೀರಿಯರ್ ಆಂಗಲ್ಸ್ ಒಳ ಕೋನಗಳು
External / exerior angles ಎಕ್ಸ್ಟರ್ನಲ್ / ಎಕ್ಸ್ಟೀರಿಯರ್ ಆಂಗಲ್ಸ್ ಹೊರ ಕೋನಗಳು
Coplanar line segments ಕೋಪ್ಲೇನಾರ್ ಲೈನ್ ಸೆಗ್ಮೆಂಟ್ಸ್ ಸಮತಲದಲ್ಲಿನ ರೇಖಾಖಂಡಗಳು
Intersecting point ಇಂಟರ್ಸೆಕ್ಟಿಂಗ್ ಪಾಯಿಂಟ್ ಛೇದಕ ಬಿಂದು
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