
Atividade - Trigonometria
Authored by Thiago Ramon
Mathematics
11th Grade
Used 5+ times

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8 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
(UFPI) Um avião decola, percorrendo uma trajetória retilínea, formando com o solo um ângulo de 30° (suponha que a região sobrevoada pelo avião seja plana). Depois de percorrer 1.000 metros, a altura atingida pelo avião, em metros, é:
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Na figura acima, determine o seno de alpha ( ).
1,6
0,6
0,8
1,25
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Um engenheiro foi contratado para calcular a altura de um prédio sem subir nele. A uma distância de 40 metros, constatou-se que era possível construir o seguinte triângulo retângulo:
Podemos afirmar que a altura do prédio é de, aproximadamente:
(Dados: use √3 = 1,7)
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
No triângulo retângulo a seguir, sabendo que seus lados estão medidos em metros, o valor do cosseno do ângulo ɑ é:
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Um terreno possui o formato de um retângulo cuja base mede 8 cm, sabendo que o ângulo formado entre a base e a diagonal é de 30º, qual o valor que mais se aproxima da diagonal? (Use √3 = 1,7)
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
No triângulo, determine a medida do lado AC, tendo em vista as medidas presentes nele. (Use √2 = 1,4 e √3 = 1,7).
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Calcule a medida do lado x do triângulo abaixo sabendo que o ângulo oposto a ele mede 60°.
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