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Trigonometria

Authored by Susana Silva

Mathematics

1st - 10th Grade

CCSS covered

Used 13+ times

Trigonometria
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14 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A razão cosseno corresponde:

cateto adjacente/hipotenusa

cateto oposto/hipotenusa

cateto oposto/cateto adjacente

cosseno/seno

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A razão tangente é calculada por:

cateto oposto/cateto adjacente

cateto oposto/cateto oposto

hipotenusa/cateto adjacente

hipotenusa/cateto oposto

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Atendendo ao triângulo retângulo representado na figura, podemos afirmar que:

sin⁡ρ≈1,3\sin\rho\approx1,3

cos⁡ρ=0,8\cos\rho=0,8

sin⁡ρ=0,6\sin\rho=0,6

tan⁡ρ≈1,3\tan\rho\approx1,3

Tags

CCSS.HSG.SRT.C.6

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Na figura, está representado um triângulo retângulo.
Apresentam-se a seguir quatro igualdades. Apenas uma está correta. Qual?

sin⁡x=bc\sin x=\frac{b}{c}

sin⁡x=ba\sin x=\frac{b}{a}

sin⁡x=ca\sin x=\frac{c}{a}

sin⁡x=ab\sin x=\frac{a}{b}

Tags

CCSS.HSG.SRT.C.6

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 cos⁡2x+sin⁡2x=?\cos^2x+\sin^2x=?  

0

1

2

 h2h^2  

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Qual dos seguintes valores não pode representar o cosseno de um ângulo agudo?

23\frac{2}{3}

54\frac{\sqrt{5}}{4}

0,990,99

54\frac{5}{4}

Tags

CCSS.HSF.TF.A.2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

  Sabendo que  senα=32 e  cos⁡α=12,\ Sabendo\ que\ \ sen\alpha=\frac{\sqrt{3}}{2}\ e\ \ \cos\alpha=\frac{1}{2}, 
Qual o valor de   tan⁡α\tan\alpha  ?

 3\sqrt{3}  

 23\frac{2}{\sqrt{3}}  

 34\frac{\sqrt{3}}{4}  

 13\frac{1}{\sqrt{3}}  

Tags

CCSS.HSF.TF.C.8

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