Trigonometric Ratios and Concepts

The video tutorial introduces trigonometry, focusing on the relationship between angles and sides in triangles. It explains the trigonometric ratios: sine, cosine, and tangent, and how they relate to triangle measurements. The tutorial also provides a mnemonic to help remember these ratios, emphasizing their practical applications and relationships.

What is the primary concept of trigonometry as introduced in the video?

• The study of circular motion

• The relationship between angles and sides of a triangle

• The calculation of area of triangles

• The measurement of angles in degrees

How does changing the angle in a triangle affect its sides?

• It changes the shape of the triangle

• It changes the color of the sides

• It changes the length of the sides

• It does not affect the sides

Which of the following is NOT a trigonometric ratio introduced in the video?

• Secant

• Sine

• Cosine

• Tangent

What does the 'co' in cosine stand for?

• Complement

• Curve

• Circle

• Coordinate

What is the sine of an angle defined as?

• Opposite over adjacent

• Hypotenuse over opposite

• Adjacent over hypotenuse

• Opposite over hypotenuse

How is the tangent of an angle calculated?

• Opposite over adjacent

• Adjacent over hypotenuse

• Hypotenuse over adjacent

• Opposite over hypotenuse

What is the relationship between sine and cosine in terms of tangent?

• Tangent is sine plus cosine

• Tangent is sine times cosine

• Tangent is sine minus cosine

• Tangent is sine divided by cosine

What mnemonic is introduced to help remember the trigonometric ratios?

• Pythagorean Theorem

• SOHCAHTOA

• Angle Sum Formula

• Circle Theorem

What does the 'S' in SOHCAHTOA stand for?

• Sum

• Supplement

• Secant

• Sine

Which trigonometric ratio is defined as opposite over adjacent?

• Sine

• Secant

• Cosine

• Tangent