MHSB - 7 - Maths :: Circle

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[Contributor - Kripa S]

Objective: Introduce Circle and Explain different components of circle

Subtopics to be covered:

- Circumference of a circle

- Arc, central angle, measure of arc of a circle

Learning Outcome:

- Students can solve problems on circumference of circle

- They can find measure of an arc of a circle

[Contributor - Kripa S]

http://cart.ebalbharati.in/BalBooks/pdfs/701020004.pdf#page=84 (Marathi)

http://cart.ebalbharati.in/BalBooks/pdfs/703020004.pdf#page=84 (English)

[Contributor - Kripa S]

https://www.youtube.com/watch?v=7oNTNoYlqKg (circle)

[Contributor - Kripa S]

http://www.gmatfree.com/wp-content/uploads/2014/07/ScreenHunter_185-Oct.-13-16.52.jpg (circle)

http://www.tpub.com/math1/18.htm26.gif (arc, sector, chord)

https://s-media-cache-ak0.pinimg.com/originals/5f/6f/8f/5f6f8fa04a02fb82eaa2bd4373f7d5d1.jpg (all parts in circle)

[Contributor - Kripa S]

1. Make teams of 5 students. Ask students to give examples of things that have shape of a circle:

eg: chapati, moon, sun, earth, ball, bangle, coins etc.

The team with maximum examples win.

[Contributors - Kripa S, Shweta Angne]

https://community.ekstep.in/preview/content/do_31217917831991296011295 (Video on circle) (Source: Ekstep)

https://drive.google.com/open?id=0BzNF2YyqQxJ-MVA2MTg5TW9FMDA (Answer Key)

Term'	'Transliterated Term'	'Translated Term'
circle	सर्कल	वर्तुळ
circumference	सार्कमफरन्स	परीघ
radius	रेडीयेस	त्रिज्
chords	कॉर्ड्स	जीवा
diameter	डायमीटर	व्यास
circular dish	सर्क्युलर डिश	वर्तु ळाकार पालथी थाळी
distance	डिस्टन्स	अंतर
arc of circle	आर्क ऑफ सरकल	वर्तु ळकंस
minor arc	मायनर आर्क	लघुकंस
major arc	मेजर आर्क	विशालकंस
semicircular arc	सेमीसर्क्युलर आर्क	अर्धवर्तु ळकंस
central arc	सेंट्रल आर्क	केंद्रीय कोन
angle	अँगल	माप

[Contributor - Shweta Angne]

https://drive.google.com/open?id=0BzNF2YyqQxJ-WTlLbjI4YWNMbVU

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