
Circunferência
Authored by Alessandra Barraviera
Mathematics
8th Grade
Used 54+ times

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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o diâmetro de uma circunferência que tem 20 cm de raio?
5 cm
10 cm
12 cm
40 cm
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Uma circunferência tem 30 cm de diâmetro. Qual é a medida do seu raio?
15 cm
20 cm
30 cm
60 cm
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
A maior corda de uma circunferência mede 56 cm. Quanto mede seu raio?
20 cm
24 cm
28 cm
30 cm
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A figura acima representa uma pista de ciclismo. Qual é a distância total percorrida por um ciclista que dá uma volta nessa pista?
219, 8 m
250 m
300 m
519, 8 m
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Qual é o raio, aproximado, da circunferência cujo comprimento é 30 m?
4 m
5 m
6 m
7 m
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a medida angular do arco que tem o ângulo central igual a 25º?
15º
20º
25º
30º
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Qual é o comprimento do arco de circunferência que tem raio medindo 2 cm e ângulo central igual a 120º. Use = 3.
4 cm
5 cm
7 cm
9 cm
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