Difference between revisions of "WBSED - 7 - Maths :: Properties of Triangles"
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Revision as of 00:00, 26 September 2017
Go To: WBSED-Mathematics-Grade 7
- Lesson Plan
- Textbook
- Videos
- Images
- Activities
- Additional Aids
- Transliteration
- Worksheets
- Assessments
[Contributor - Kripa S]
Objective: To learn on different properties in triangle
Subtopics to be covered:
- Altitude, Median of a triangle
- Perpendicular bisector of sides of triangle
- Angle bisectors of angles of triangle
Learning Outcome:
- Students can find out which is an altitute, median, bisector in a triangle based on given information
- Students can identify from the property stated what is asked about the triangle
[Contributor - Kripa S]
http://www.wbsed.gov.in/wbsed/readwrite/etextbook/Ganitprabha%20Class%20VII.pdf#page=182 (Bengali Medium)
[Contributor - Kripa S]
https://www.youtube.com/watch?v=-UWkk53JfY8 (types of triangles)
https://www.youtube.com/watch?v=17acMZmDpCA (Property of sum of two sides of triangles)
[Contributor - Kripa S]
https://s3-ap-southeast-1.amazonaws.com/learnhive/lcards/Types-of-Triangles-521dd275368b9.png (types of triangles)
http://s3-ap-southeast-1.amazonaws.com/subscriber.images/maths/2016/06/22114543/ALTITUDE.png (Altitudes of a triangle)
http://s3-ap-southeast-1.amazonaws.com/subscriber.images/maths/2016/06/22114547/Triangle.Centroid.Median.png (Medians of a triangle)
http://image.wistatutor.com/content/feed/u774/angle%20pro3.JPG (exterior angle property)
https://dj1hlxw0wr920.cloudfront.net/userfiles/wyzfiles/f0516fa1-669b-441d-9f11-a33907a2a0b0.gif (Angle sum property of a triangle)
https://upload.wikimedia.org/wikipedia/commons/thumb/b/b2/TriangleInequality.svg/220px-TriangleInequality.svg.png ( Property of lengths of sides of triangle)
[Contributor - Kripa S]
1. Can a median of a side of triangle be out of the triangle ? Try and see.
2. Draw one equilateral triangle, one isosceles triangle, one scalene triangle. Find their altitudes and means. What is common about them?
[Contributor - Arnab Das]
| Term | Transliterated Term | Translated Term |
| Triangle | ট্রাইএঙ্গেল | ত্রিভুজ |
| Vertex | ভার্টেক্স | শীর্ষবিন্দু |
| Median | মিডিয়ান | মধ্যমা |
| Concurrent | কনকারেন্ট | সমবিন্দু |
| Perpendicular | পারপেন্ডিকুলার | লম্ব |
| Base | বেস | ভূমি |
| Height | হাইট | উচ্চতা |
| Area | এরিয়া | ক্ষেত্রফল |
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