Quiz about Trigonometry

Question 1

The angle measures of $$ 	riangle R T S$$ are in radians.Find the value of $$\sin \frac{\pi}{3}$$ (Enter an exact value or round to the nearest hundredth)?

![](http://admin.getprephub.com/media/editor/t2_20220823202942518305.png)

Accepted Answer

Covalent bond

Answer

$$ 0.87$$

Answer

$$1.1$$

Answer

$$0.5$$

Answer

$$0$$

Question 2

Angle $$A$$ is the complement of angle $$B$$.

Which equation about the two angles must be true?

Accepted Answer

Covalent bond

Answer

$$\cos A=\sin B$$

Answer

$$\sin A=\sin B$$

Answer

$$\sin A=\cos A$$

Answer

$$\cos B=\sin B$$

Question 3

Triangle $$A B C$$ is shown.

![](http://admin.getprephub.com/media/editor/r21_20230225230847290090.png)
What is $$	an ({A})$$ ?

Accepted Answer

Covalent bond

Answer

$$\frac{5}{13}$$

Answer

$$ \frac{5}{12}$$

Answer

$$\frac{12}{13}$$

Answer

$$\frac{13}{5}$$

Question 4

A right triangle $$A B C$$ is shown.

![](http://admin.getprephub.com/media/editor/d2_20230225223522255316.png)

What is $$\cos A$$ ?

Accepted Answer

Covalent bond

Answer

$$\frac{8}{17} $$

Answer

$$\frac{15}{17} $$

Answer

$$\frac{8}{15} $$

Answer

$$\frac{17}{8}$$

Question 5

A triangle is shown.

![](http://admin.getprephub.com/media/editor/d11_20230225224217403941.png)
What is the length, in inches (in.), of side $$a$$ ?

Accepted Answer

Covalent bond

Answer

22

Answer

88

Answer

12

Answer

44

Trigonometry Precalculus Maths Problems and Solutions

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