Intro to Trigonometry Quiz

What is the primary focus of trigonometry?

• Calculating the area of circles

• Understanding the properties of squares

• Studying the ratios of sides in right triangles

• Measuring angles in polygons

Which mnemonic helps remember the trigonometric ratios?

• PEMDAS

• FOIL

• SOHCAHTOA

• BODMAS

In the mnemonic SOHCAHTOA, what does 'SOH' stand for?

• Sine = Opposite / Adjacent

• Sine = Hypotenuse / Opposite

• Sine = Adjacent / Hypotenuse

• Sine = Opposite / Hypotenuse

In the first example, what is the hypotenuse of the triangle?

• The side opposite angle A

• The longest side of the triangle

• The side adjacent to angle A

• The side opposite the right angle

For angle A, if the opposite side is 48 and the hypotenuse is 94, what is the sine of angle A?

• 94/48

• 48/64

• 64/94

• 48/94

In the second example, which side is opposite to angle X?

• Side with length 6

• Side with length 5

• Side with length 3

• Side with length 4

What is the cosine of angle X if the adjacent side is 3 and the hypotenuse is 5?

• 5/3

• 4/5

• 3/4

• 3/5

For angle W, if the opposite side is 3 and the adjacent side is 4, what is the tangent of angle W?

• 5/3

• 3/5

• 4/3

• 3/4

Which side is always the hypotenuse in a right triangle?

• The side opposite the smallest angle

• The side opposite the right angle

• The side adjacent to the right angle

• The side adjacent to the smallest angle

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