Cetvorougao
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Transcript of Cetvorougao
![Page 1: Cetvorougao](https://reader038.fdocuments.net/reader038/viewer/2022102608/55c16e45bb61ebc8558b45e2/html5/thumbnails/1.jpg)
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MNOGOUGAO SA ČETIRISRANICE NAZIVA SE:
ČETVOROUGAO
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RAZNI ČETVOROUGLOVI
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Nacrtaj svoj četvorougao u svesci. Pokaži i obeleži temena.
A
B
C
D
Obeleži i pročitaj stranice.
a
b
c
d
NASPRAMNE
d,b
a,c
susednea,bb,cc,d i d,a
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Još jedna važna duž!
A
C
D
a
b
c
d
B
Koliko dijagonala ima četvorougao?
DIJAGONALA
AC i BD
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DA LI JE OVO ČETVOROUGAO?
NEKONVEKSAN
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A
D
a
b
c
d
B
C
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A
D
a
b
c
d
B
C
Šta su spoljašnji uglovi?
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A
D
a
b
c
d
B
C
Koliki je zbir unutrašnjih uglova četvorougla?
180o
180o
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A
D
a
b
c
d
B
C
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U SVAKOM ČETVOROUGLU JE:
ZBIR UNUTRAŠNJIHUGLOVA 360O
ZBIR SPOLJAŠNJIH UGLOVA 360O
![Page 13: Cetvorougao](https://reader038.fdocuments.net/reader038/viewer/2022102608/55c16e45bb61ebc8558b45e2/html5/thumbnails/13.jpg)
ZADACI:1.
2.Odredi ostale uglove.
3.Dva ugla četvorougla su jednaka i iznose po 80o. ako je spoljašnji ugao trćeg ugla 70o, odrediti ostale unutrašnje uglove tog četvorougla.4.Dva unutrašnja ugla četvorougla su 59o40’ i 112o50’,a druga dva su jednaka. Odrediti ostale unutrašnje i spoljašnje uglove tog četvorougla.
Domaći zadatak: 4.1./ 4.2. 4.7. 4.3. 4.8. 4.4. 4.9.
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Autor prezentacije:
Mirjana Rašić Mitić
Nastavnik matematike u OŠ ”Sveti Sava” u Nišu