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QUIZ

10th
grade

Mathematics

62%

accuracy

30

plays

User image

Edita Balinskiene

4 years

Mathematics

10th

grade

Centrinis kampas ir išpjova

user

Edita Balinskiene

30
plays

13 questions

13 questions

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1. Multiple Choice
2 minutes
1 pt
Kam lygus apskritimo ilgis, jeigu jo skersmuo 20 cm ?
20π
100π
40π
400π
2. Multiple Choice
1 minute
1 pt
Skritulio ploto formulė yra?
$S=2\pi r$
$S=2\pi r^2$
$S=\pi r^2$
$S=\pi r$
3. Multiple Choice
1 minute
1 pt
Apskritimo ilgis apskaičiuojamas taikant formulę -
$C=\pi r^2$
$C=\pi r$
$C=2\pi r^2$
$C=2\pi r$
4. Multiple Choice
3 minutes
1 pt
Kokiu kampu pasisuks laikrodžio minutinė rodyklė per 25 minutes?
$140^o$
$150^o$
$120^o$
$100^o$
5. Multiple Choice
3 minutes
1 pt
Kokiu kampu pasisuks laikrodžio valandinė rodyklė per 28 minutes?
$28^o$
$14^o$
$20^o$
$16^o$
6. Multiple Choice
1 minute
1 pt
Skritulio išpjovos ploto formulė
$S_{išpjovos}=\frac{\pi r^2}{360^o}\cdot\alpha$
$S_{išpjovos}=\frac{\pi r^2}{180^o}\cdot\alpha$
$S_{išpjovos}=\frac{2\pi r}{360^o}\cdot\alpha$
$S_{išpjovos}=\frac{\pi r^2}{\alpha}$
7. Multiple Choice
5 minutes
1 pt
Skritulio išpjovos spindulys lygus 6 , jos kampas $\alpha=120^o$ . Apskaičiuoti išpjovos plotą.
$12\pi$
$36\pi$
$18\pi$
$6\pi$
8. Multiple Choice
5 minutes
1 pt
Rasti kampą tarp laikrodžio minutinės ir valandinės rodyklės, kai laikrodis rodo 16 val ir 20 min.
$0^o$
$5^o$
$10^o$
$12^o$
9. Multiple Choice
5 minutes
1 pt
Išpjovos lanko ilgis lygus $5\pi$ , o spindulys lygus 10. Koks išpjovos kampas $\alpha$ ?
$90^o$
$120^o$
$180^0$
$60^o$
10. Multiple Choice
2 minutes
1 pt
Kokiu kampu pasisuks sieninio laikrodžio minutinė rodyklė per 20 min?
100 $\degree$
120 $\degree$
125 $\degree$
130 $\degree$
11. Multiple Choice
3 minutes
1 pt
Kokiu kampu pasisuks sieninio laikrodžio valandinė rodyklė per 0,3 val?
120 $\degree$
12 $\degree$
10 $\degree$
9 $\degree$
12. Multiple Choice
5 minutes
1 pt
Išpjovos lanko ilgis $\frac{2\pi}{3}cm$ , o šios išpjovos centrinis kampas lygus $30\degree$ . Koks išpjovos spindulio ilgis?
4 cm
2 cm
$4\sqrt{5\ }cm$
40 cm
13. Multiple Choice
5 minutes
1 pt
Išpjovos plotas lygus $56\pi\ cm^2$ , o spindulys lygus 12cm. Koks šią išpjovą atitinkančio kampo didumą ?
$\frac{56}{15}\degree$
$70\degree$
$140\degree$
$120\degree$
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