Razões Trigonométricas - 9° ano
Quiz
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
LAISSA SILVA
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10 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Para permitir o aceso a um monumento que está em um pedestal de 2 m de altura, vai ser construída uma rampa com inclinação de 30° com o solo, conforme a ilustração. Dessa forma, o comprimento da rampa será igual a:
4 m
8 m
6 m
10 m
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
A razão que representa o valor de seno no triângulo da figura é:
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Gustavo encostou uma escada numa parede de sua casa de tal modo que o topo da escada ficou a uma altura de 3 m em relação ao chão. Considerando que a escada forma um ângulo de 30° com a parede, o comprimento da escada é superior a 3 m. (Dado: cos 30° = 0,86)
Certo
Errado
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Determine o valor do cosseno do ângulo
no triângulo da fugura:0.8
0.6
1.3
1.25
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
A tangente do ângulo 0 é determinada por:
3/4
4/5
4/3
3/5
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Uma escada rolante de 6 m de comprimento liga dois andares de uma loja e tem inclinação de 30°. Assim, em metros, a altura entre esses dois andares é:
12 m
10 m
6 m
3 m
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Um menino está empinando uma pipa e sua mão se encontra a 50 centímetros do chão. Sabendo que a linha que sustenta a pipa mede 100 m, encontra-se bem esticada e está determinando com o solo plano e horizontal um ângulo de 30°, pode-se afirmar que a altura dessa pipa em relação ao chão é superior a 50 m.
Certo
Errado
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