APSB - 7 - Maths :: The Triangle and its Properties

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[Author - Kripa S]

Objective: Explain properties of triangle for different types of triangle

Subtopics to be covered:

- Revise types of triangles based on sides and angles

- Median and Altitude of a triangle

- Exterior angle of triangle and its property

- Angle sum Property of triangle

- Property on sum of lengths of sides of triangle

Learning Outcome:

- Students can solve problems based on the above concepts

[Author - Kripa S]

http://scert.telangana.gov.in/sites/default/files/publication/ebooks/7TM_MAT.pdf#page=96 (Telangana Board) (Telugu Medium)

http://apscert.gov.in/ebookapp/GeneratePdf (AP Board) (Telugu Medium)

http://scert.telangana.gov.in/sites/default/files/publication/ebooks/7EM_MAT.pdf#page=96 (Telangana Board) (English Medium)

http://apscert.gov.in/ebookapp/GeneratePdf (AP Board) (English Medium)

[Author - Kripa S, Vinaya Santhosh]

https://te.khanacademy.org/video?lang=te&format=lite&v=xKaCeFOA_AU ( (Khan Academy) సరూప త్రిభుజాలు )

https://www.youtube.com/watch?v=JphEvuYbXPs  (Telugu - Sides of angles explained)

https://www.youtube.com/watch?v=Gp4ZWP-2TPc  (Telugu - Properties of Triangles, right angled, Acute and Obtuse angles)

https://www.youtube.com/watch?v=OBXWcWcvYw8  (Telugu - TYpes of triangles  and right angles)

[Author - 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)

[Author - 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?

[Author - Meghana Bommi Reddy]

https://drive.google.com/open?id=0BzNF2YyqQxJ-QUNTWXd4YlZvV0U

Term'	Transliterated Term	Translated Term
Triangle	ట్రైయాంగిల్	త్రిభుజం
Line	లైన్	రేఖ
Line segment	లైన్ సెగ్మెంట్	మెంట్
Scalene	స్కేల్న్
Isoceles	ఇసోసెలెస్	సమద్విబాహు త్రిభుజం
Median	మీడియన్	సగటు
Perpendicular	పెర్ఫెన్దిక్యూలర్	లంభం
Altitude	ఆల్టిట్యుడ్	ఎత్తులో

[Author - Meghana Bommi Reddy]

https://drive.google.com/open?id=0BzNF2YyqQxJ-dkR0LThZVVRCTW8

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