
Circunferência
Authored by HOMAR UFG
Mathematics
6th - 12th Grade
Used 20+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A, B, C, D e E são pontos de uma circunferência com centro no ponto O.
[AD] é _____________ e [EO] é __________________.
uma corda, um raio
um diâmetro, um raio
um raio, um diâmetro
um diâmetro, uma corda
um raio, uma corda
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Sabendo que a reta s é tangente à circunferência em B e [BA] é um diâmetro, qual é a amplitude do ângulo BOC?
52
90
38
128
45
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Uma reta tangente a uma circunferência é perpendicular a qualquer raio da circunferência?
Verdadeiro
Falso
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
t é reta tangente à circunferência no ponto B.
O triângulo [AOB] é:
retângulo
equilátero
escaleno
isósceles
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Qual é a equação reduzida da circunferência de centro (-1; 2) e raio 3.
(x−1)2+(y+2)2=3
(x−1)2+(y−2)2=9
(x+1)2+(y+2)2=3
(x+1)2+(y-2)2=9
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Qual é a equação reduzida da circunferência?
(x−1)2+(y+2)2=2
(x−1)2+(y+3)2=4
(x+1)2+(y-1)2=4
(x+2)2+(y+2)2=2
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Dada a equação reduzida da circunferência
(x - a)² + (y - b)² = r²
sendo (a, b) as coordenadas do centro e r a medida do raio, identifique a equação geral da circunferência de centro (2 , 3) e raio igual a 5.
x² + y² = 25
x² + y² – 4xy – 12 = 0
x² – 4x = -16
x² + y² – 4x – 6y – 12 = 0
y² – 6y = -9
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