WBSED - 7 - Maths :: Parallel Lines, Transversals
Go To: WBSED-Mathematics-Grade 7
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[Contributor - Kripa S]
Objective: To explore more on lines and angles made
Subtopics to be covered:
- Types of lines - Parallel, Intersecting, Tranversal
- Angles made by a transversal on lines
Learning Outcome:
- Students can identify whether angles made by a transversal are equal or not
[Contributor - Rini Jose]
[Contributor - Kripa S]
https://www.youtube.com/watch?v=wBUraeYz-UM&index=3&list=PLD431F45D48950EE3 (parallel lines, angles)
https://www.youtube.com/watch?v=dybHQbZGCGQ&index=4&list=PLD431F45D48950EE3 (angles formed between transversal and parallel lines)
https://www.youtube.com/watch?v=e3NAeXaq-LI&index=5&list=PLD431F45D48950EE3 (angles of parallel lines 2)
[Contributor - Kripa S]
https://static.studyladder.com/cdn/course/19/ce6062a85a2e.jpg (types of lines)
http://study.com/cimages/multimages/16/line_vs._line_segment_.png (line vs line segment)
https://www.skillsyouneed.com/images/geo/corresponding-angle.png (angles made by transversal)
https://i.ytimg.com/vi/NxIRHn7tR7I/hqdefault.jpg (corresponding angles)
[Contributor - 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 - Arnab Das]
| Term | Transliterated Term | Translated Term |
| Parallel Lines | প্যারালেল লাইনস | সমান্তরাল সমরেখা |
| Transversal | ট্র্যানসভারসাল | ছেদক |
| Vertical Angle | ভার্টিকাল এঙ্গেল | বিপ্রতীপ কোণ |
| Interior Angle | ইন্টেরিয়র এঙ্গেল | অন্তঃস্থ কোণ |
| Exterior Angle | এক্সটেরিয়র এঙ্গেল | বহিঃস্থ কোণ |
| Alternate Angle | অল্টারনেট এঙ্গেল | একান্তর কোণ |
| Corresponding Angle | করেসপন্ডিং এঙ্গেল | অনুরূপ কোণ |
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