
Mnogokuti
Authored by Maja Katalinić
Mathematics
7th Grade
Used 21+ times

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13 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pravilni mnogokut je mnogokut
koji ima sve stranice jednake duljine.
koji ima sve kutove jednake veličine.
koji ima sve stranice jednake duljine i sve kutove jednake veličine.
koji je konveksan.
Answer explanation
Jednakostranični trokut, kvadrat, pravilni peterokut, ... svi pravilni mnogokuti imaju sve stranice jednakih duljina i sve kutove jednakih veličina!
2.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Karakteristični trokut pravilnog mnogokuta je _____________ trokut.
Answer explanation
Karakteristični trokut pravilnog mnogokuta je jednakokračni trokut!
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Unutarnji kut karakterističnog trokuta kojemu je vrh u središtu mnogokutu opisane i upisane kružnice zove se
Answer explanation
Kut s vrhom u središtu kružnice zove se središnji kut!
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Koje su od sljedećih tvrdnji točne?
Pravokutnik je pravilan mnogokut.
Jednakokračni trokut je pravilan mnogokut.
Dijagonale iz jednog vrha dijele sedmerokut na 4 trokuta.
Iz jednog vrha osmerokuta možemo povući 5 dijagonala.
Answer explanation
Ispravak: Pravokutnik nema sve stranice jednake duljine, kao ni jednakokračni trokut, pa oni NISU pravilni mnogokuti! Ako povučemo sve dijagonale iz jednog vrha sedmerokuta, podijeli ćemo ga na 7-2 = 5 trokuta!
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Formula za računanje broja dijagonala iz jednog vrha n-terokuta je
Answer explanation
Iz jednog vrha n-terokuta možemo povući n-3 djagonala!
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Unutarnji kutovi karakterističnog trokuta su
Answer explanation
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Koje od sljedećih tvrdnji nisu točne?
Dijagonala mnogokuta je dužina koja spaja dva susjedna vrha tog mnogokuta.
U trokutu možemo povući samo jednu dijagonalu.
Susjedne stranice mnogokuta su stranice koje imaju zajednički vrh.
Answer explanation
Ispravak: Dijagonala mnogokuta je dužina koja spaja dva NEsusjedna vrha. U trokutu nema nesusjednih vrhova pa on NEMA dijagonala.
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