Free Printable Review for Second Periodical Test in Trigonometry

Worksheets

Review for Second Periodical Test in Trigonometry

Total questions: 20

Worksheet time: 31mins

Name

Class

Date

Which of the following represents an obtuse angle?

0º <θ< 180º

0º <θ< 90º

90º <θ< 180º

90º >θ> 180º

The value of cosine in trigonometric functions of obtuse angles can be identified using the formula cosθ = cos (180º -θ )

TRUE

FALSE

Which of the following is the value of the opposite of 30º, if the opposite of 60º is equal to 5 cm?

$\frac{10\sqrt{3\ }}{3}$

$\frac{15\sqrt{3}}{3}$

$\frac{5\sqrt{3}}{3}$

$\frac{20\sqrt{3}}{3}$

Select all the set of angles included in special right triangles.

45º-45º-90º

45º-60º-90º

45º-45º-180º

30º-60º-90º

This figure is made up of several smaller geometric figures like triangles, circles and rectangles.

(a)

Which of the following angles represent the given triangle?

45º-45º-180º

45º-45º-90º

30º-60º-90º

30º-45º-90º

This function is can be used in solving the problem if the given ratio is hypotenuse over adjacent.

Tangent

Cosine

Secant

Sine

If the hypotenuse measures 213 cm while the upper angle is 50° and the opposite side is missing, the ratio of what trigonometric function can be used?

Cosine

Sine

Cosecant

Secant

Find the value of side CA. Express your answer into two decimal places.

(a)

10.

Select the trigonometric functions that can be used in solving the value of d.

cotangent

sine

tangent

cosecant

11.

Which of the following does not belong to the trigonometric functions of an obtuse angle?

sin θ = sin (180º + θ)

cos θ = -cos (180º - θ)

cot θ = -cot (180º - θ)

csc θ = csc (180º - θ)

12.

Find the value of sec 56º in trigonometric functions of obtuse angles. Express your answer into four decimal places.

(a)

13.

This theorem is can be used in finding the 3rd missing side of the right triangle which states that "the sum of the squares of the two legs of the right triangle is equal to the square of its hypotenuse."

(a)

14.

In triangle CDB, which of the following is the value of angle B?

45°

60°

30°

90°

15.

To easily solve for the composite figures of right triangles, what is the first step to do?

illustrate

write the given

separate the triangles

none of the above

16.

Find the value of x.

(a)

17.

Which of the following is the value of tan 142º43' in functions of obtuse angles?

0.7163

-0.7163

0.7613

-0.7613

18.

In the rules of trigonometric functions of an obtuse angles, which of the following reflects a positive function?

cotangent

sine

cosine

cosecant

19.

Two angles can be said complementary if their sum is equal to 180º.

TRUE

FALSE

20.

Select the two given patterns for the angles included in special right triangles.

$x:x\sqrt{2}:2x$

$x:x\sqrt{3}:2x$

x:x:x\sqrt{2}

$x:x:x\sqrt{3}$

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Review for Second Periodical Test in Trigonometry

Total questions: 20

Worksheet time: 31mins

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