Question 1

$\frac{opposite\ leg}{hypotenuse}$

Accepted Answer

sin

Answer

sec

Answer

cos

Answer

csc

Question 2

$\frac{adjacent\ side}{opposite\ side}$

Accepted Answer

cotangent

Answer

tangent

Answer

secant

Answer

sine

Question 3

What is the formula for the tangent value of any acute angle of a right triangle?

Accepted Answer

$\frac{opposite\ side}{adjacent\ side}$

Answer

$\frac{adjacent\ side}{hypotenuse}$

Answer

$\frac{adjacent\ side}{opposite\ side}$

Answer

$\frac{opposite\ side}{hypotenuse}$

Question 4

Which of the following ratio is equal to the cosecant function?

Accepted Answer

$\frac{hypotenuse}{opposite\ side}$

Answer

$\frac{adjacent\ side}{hypotenuse}$

Answer

$\frac{adjacent\ side}{hypotenuse}$

Answer

$\frac{opposite\ side}{hypotenuse}$

Question 5

Which of the following is the reciprocal of cosine?

Accepted Answer

secant

Answer

sine

Answer

cotangent

Answer

cosecant

Question 6

In right triangle ABC where C is the right angle, which of the following is true?

Accepted Answer

$\sin A=\cos B$

Answer

$	an A=\cot A$

Answer

$	an B=\cot B$

Answer

$\sin A=\csc B$

Question 7

Which of the following is equivalent to cos F?

Accepted Answer

$\frac{4}{5}$

Answer

$\frac{3}{5}$

Answer

$\frac{5}{3}$

Answer

$\frac{5}{4}$

Question 8

Which of the following is equivalent to csc D?

Accepted Answer

$\frac{5}{4}$

Answer

$\frac{5}{3}$

Answer

$\frac{4}{5}$

Answer

$\frac{3}{5}$

Question 9

$	an F$

Accepted Answer

$\frac{3}{4}$

Answer

$\frac{5}{3}$

Answer

$\frac{4}{5}$

Answer

$\frac{5}{4}$

Question 10

Which expression has the same value as sec F?

Accepted Answer

$\csc D$

Answer

$\cos D$

Answer

$\cos F$

Answer

$\csc F$

Question 11

Which of the following is the value of sin 30°?

Accepted Answer

$\frac{1}{2}$

Answer

$\frac{\sqrt{2}}{2}$

Answer

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

Answer

$\frac{2\sqrt{3}}{3}$

Question 12

What is the value of tan 30°?

Accepted Answer

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

Answer

$\frac{\sqrt{2}}{2}$

Answer

$\frac{\sqrt{3}}{2}$

Answer

$\frac{2}{3}\sqrt{3}$

Question 13

What is cos 45°?

Accepted Answer

$\frac{\sqrt{2}}{2}$

Answer

$\frac{\sqrt{3}}{2}$

Answer

$\frac{2}{3}\sqrt{3}$

Answer

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

Question 14

In triangle ABC, C is the biggest angle, what is the formula in getting side "c"? Where sides a and b and angle C are given?

Accepted Answer

$c=\sqrt{a^2+b^2-2ab\cos C}$

Answer

$c=\sqrt{a^2-b^2+2ab\cos C}$

Answer

$c=\sqrt{a^2+b^2+2ab\cos C}$

Answer

$c=\sqrt{a^2-b^2-2ab\cos C}$

Question 15

Which equation will be used to find the length of x?

Accepted Answer

$x^2=10^2+9^2-2\left(10\right)\left(9\right)\cos45\degree$

Answer

$x^2=10^2-9^2-2\left(10\right)\left(9\right)\cos45\degree$

Answer

$x^2=10^2-9^2+2\left(10\right)\left(9\right)\cos45\degree$

Answer

$x^2=10^2+9^2+2\left(10\right)\left(9\right)\cos45\degree$

Question 16

Which of the following is true about angles of elevation and depression?

Accepted Answer

The angles of elevation and depression are different angles but have the same measure.

Answer

The angles of elevation and depression are the same angles in the same position.

Answer

The angles of elevation and depression are both obtuse angles.

Answer

The angles of elevation and depression have different measures.

Question 17

Joey, who is in the third floor of a building, is looking at a tree on the ground. The angle formed between his eye level and his line of sight to the tree is 37°. What angle is identified in the problem?

Accepted Answer

angle of depression

Answer

acute triangle

Answer

oblique triangle

Answer

angle of elevation

Question 18

Given the figure at right, which refers to the angle of elevation?

Accepted Answer

$\angle SQP$

Answer

$\angle PRQ$

Answer

$\angle PQR$

Answer

$\angle SQR$

Question 19

What is the exact value of 4 sin 30°?

Accepted Answer

2

Answer

1

Answer

4

Answer

3

Question 20

$20\sqrt{3}$

Accepted Answer

30°30\degree30°

Answer

$60\degree$

Answer

$45\degree$

Answer

$90\degree$

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