
pole i obwód koła
Authored by Marzena Wilczewska
Mathematics
8th Grade
Used 60+ times

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9 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dane jest koło o promieniu 2 cm. Promień tego koła zwiększono 6 razy, zatem jego pole wzrosło
2 razy
6 razy
12 razy
36 razy
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Obwód koła o polu równym 196π cm2 wynosi
14 π
28 π
98 π
196 π
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Karuzela wykonuje jeden obrót w czasie 15 sekund. Ola usiadła w odległości 3 m od osi obrotu karuzeli i kręciła się przez 8 minut. Jaką drogę w tym czasie pokonała Ola?
ok 300 m
ok 600 m
ok 800 m
ok 1000 m
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pole figury wynosi
8
5π
8 + 5π
13π
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Obwód figury wynosi
8π
8
6π
8 + 8π
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Ile cm wstazki trzebabyło aby obwiązać kapelusz, jeśli jego promien jest rowny 10cm a na kokardę zuzyto 30cm
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Rabata kwiatowa ma obwód około 6,3mm. Jakie jest jej pole?
ok.13 m2
ok. 3 m2
ok. 6 m2
ok. 2 m2
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