# 4th Grading Assessment

## Quiz by Ruth R. Castro

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- Q1
The segment opposite the right angle in a right triangle is called ___________.

Opposite Side

Adjacent side

Opposite Angle

Hypotenuse

30s - Q260s
- Q360s
- Q430s
- Q5
What is the reciprocal of secant?

Cosine

Cosecant

Tangent

Sine

30s - Q6
It is an imaginary line that connects the eye of an observer to the object being observed.

Angle of elevation

Line of sight

Eye of an observer

Angle of depression

30s - Q7
It is the angle formed between the horizontal line and the line of sight of the observer to the object below the horizontal.

Angle of depression

Angle of elevation

Eye of an observer

Line of sight

30s - Q8
With respect to the given angle, what is the ratio of the opposite side to the hypotenuse?

Sine

Cotangent

Tangent

Cosine

30s - Q9
Evaluate Sine 90⁰

a. 0 b.1 c. -1 d.½

0

-1

1

$\backslash frac\{1\}\{2\}$

45s - Q10
What is the case if the given parts are the two sides and non-included angle and the missing parts are the third side and the two angles?

SSA

SSS

SAS

ASA

45s - Q11
Using the law of cosine, which formula is to be used to find angle B?)

b² = a² + c² - 2ac cos B

b² = a² + c² + 2bc cos B

b² = a² + c² + 2ac cos B

b² = a² + c² - 2bc cos B

45s - Q12
In using the law of cosines, which of the following information do you need?

The measurements of two sides and non-included angle.

The measurements of all three sides.

The measurements of all three angles.

The measurements of two angles

60s - Q13
If two sides and the included angle is given, which among the following is the case?

SAS

SSS

AAS

ASA

45s - Q14
What is the formula for law of sines?

$\backslash frac\{a\}\{\backslash sin\backslash \; A\}=\backslash frac\{b\}\{\backslash sin\backslash \; B\}=\backslash frac\{c\}\{\backslash sin\backslash \; C\}$

$\backslash frac\{a\}\{\backslash sin\backslash \; B\}=\backslash frac\{b\}\{\backslash sin\backslash \; C\}=\backslash frac\{c\}\{\backslash sin\backslash \; A\}$

$\backslash frac\{A\}\{\backslash sin\backslash \; a\}=\backslash frac\{B\}\{\backslash sin\backslash \; b\}=\backslash frac\{C\}\{\backslash sin\backslash \; c\}$

$\backslash frac\{\backslash sin\backslash \; a\}\{a\}=\backslash frac\{\backslash sin\backslash \; b\}\{b\}=\backslash frac\{\backslash sin\backslash \; c\}\{c\}$

45s - Q15
Evaluate Cosine 90⁰

$\backslash frac\{1\}\{2\}$

2

0

1

45s