
Norma NBR 9050 - Rampas
Mathematics
12th Grade

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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o nome do lado oposto ao ângulo reto em um triângulo retângulo?
Cateto
Hipotenusa
Ângulo de 90°
Cateto adjacente
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o nome do lado oposto ao ângulo α em um triângulo retângulo?
Hipotenusa
Ângulo de 90°
Cateto oposto
Cateto adjacente
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o nome do lado adjacente ao ângulo α em um triângulo retângulo?
Hipotenusa
Ângulo de 90°
Cateto oposto
Cateto adjacente
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o maior lado de um triângulo retângulo?
Cateto oposto
Cateto adjacente
Hipotenusa
Ângulo de 90°
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a razão entre a medida do cateto oposto ao ângulo α e a medida da hipotenusa em um triângulo retângulo?
Coseno de α
Tangente de α
Seno de α
Cotangente de α
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Como se escreve a fórmula do seno de um ângulo α em um triângulo retângulo?
sen α = cateto adjacente / hipotenusa
sen α = cateto oposto / hipotenusa
sen α = hipotenusa / cateto oposto
sen α = cateto oposto / cateto adjacente
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dado um triângulo retângulo com um ângulo de 15° e hipotenusa de comprimento x, qual é a relação correta para encontrar o valor de x se o cateto oposto mede 4 m?
sen 15° = 4 / x
sen 15° = x / 4
sen 15° = 4x
sen 15° = x - 4
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