

Circunferência e Propriedades do Círculo
Interactive Video
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
ELFRAN PICANCO
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que representa a circunferência de um círculo?
A área interna do círculo.
A distância do centro à borda.
O comprimento da borda do círculo.
A linha que divide o círculo ao meio.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a fórmula para calcular a circunferência de um círculo usando o raio (r)?
C = πr²
C = 2πr
C = πd
C = r/2π
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Na fórmula da circunferência C = 2πr, o que representa a letra 'r'?
O diâmetro do círculo.
A área do círculo.
O raio do círculo.
A constante Pi.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a fórmula para calcular a circunferência de um círculo usando o diâmetro (d)?
C = 2πd
C = πd²
C = πd
C = d/π
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Na fórmula da circunferência C = πd, o que representa a letra 'd'?
O raio do círculo.
A área do círculo.
A constante Pi.
O diâmetro do círculo.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se o raio de um círculo é fornecido, qual fórmula é mais direta para calcular a circunferência?
C = πd
C = 2πr
C = r/π
C = d/2π
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a natureza do número Pi (π)?
É um número racional com infinitas casas decimais.
É um número irracional com infinitas casas decimais.
É um número inteiro.
É um número decimal finito.
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