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Kružnica i krug

Authored by Draga Dolenec-Gashi

Mathematics

7th - 12th Grade

Used 49+ times

Kružnica i krug
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19 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Površinu kruga računamo pomoću formule

 P=2rπP=2r\pi   

 P=2r2πP=2r^2\pi  

 P=r2πP=r^2\pi  

 P=rπ2P=r\pi^2  

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Duljinu kružnog luka  ll  računamo pomoću formule:

 rπα360°\frac{r\pi\alpha}{360\degree}  

 rπα180°\frac{r\pi\alpha}{180\degree}  

 r2πα180°\frac{r^2\pi\alpha}{180\degree}  

 r2πα360°\frac{r^2\pi\alpha}{360\degree}  

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Površinu  PiP_i   kružnog isječka računamo pomoću formule:

 r2πα180°\frac{r^2\pi\alpha}{180\degree}  

 rπα180°\frac{r\pi\alpha}{180\degree}  

 rπα360°\frac{r\pi\alpha}{360\degree}  

 r2πα360°\frac{r^2\pi\alpha}{360\degree}  

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Mjeri kuta od  π3\frac{\pi}{3}  radijana odgovara: 

 30°30\degree  

 60°60\degree  

 90°90\degree  

 120°120\degree  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Mjeri kuta od  7π6 \frac{7\pi}{6}\   radijana odgovara: 

 210°210\degree  

 120°120\degree  

 150°150\degree  

 330°330\degree  

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ako je promjer kruga 9 cm opseg mu iznosi

9π cm9\pi\ cm

18π cm18\pi\ cm

4.5π cm4.5\pi\ cm

27 cm27\ cm

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Ako je promjer kruga 9 cm površina mu iznosi

81π cm281\pi\ cm^2

9π cm29\pi\ cm^2

20.25 π cm220.25\ \pi\ cm^2

18π cm218\pi\ cm^2

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