Trigonometric Functions and Ratios

The video tutorial covers the basics of trigonometric ratios, including sine, cosine, and tangent, and how to label the sides of a triangle relative to an angle. It explains how to use these ratios to solve problems, simplify fractions, and understand the concept of sine inverse. The tutorial also includes a practical demonstration of drawing triangles using trigonometric principles and measurements.

What is the longest side of a right triangle called?

• Hypotenuse

• Opposite

• Base

• Adjacent

Which trigonometric ratio is defined as opposite over hypotenuse?

• Cosine

• Sine

• Secant

• Tangent

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

• Cosine equals opposite over hypotenuse

• Cosine equals adjacent over hypotenuse

• Cosine equals adjacent over opposite

• Cosine equals hypotenuse over adjacent

If you have the opposite and hypotenuse of a triangle, which trigonometric function would you use to find the angle?

• Cosine

• Sine

• Tangent

• Cotangent

What is the simplified form of the fraction 12/15?

• 2/3

• 5/6

• 4/5

• 3/4

What is the inverse function of sine used for?

• Finding the length of a side

• Finding the angle given a ratio

• Finding the hypotenuse

• Finding the area of a triangle

What is the approximate angle when the sine of an angle is 4/5?

• 45 degrees

• 60 degrees

• 53 degrees

• 75 degrees

What tool is used to measure angles in a triangle?

• Ruler

• Compass

• Calculator

• Protractor

When drawing a triangle, what should you do if you don't know the exact length of one side?

• Use a protractor

• Draw it longer than needed

• Use a calculator

• Guess the length

What is the purpose of rotating a point to measure a specific length on a triangle?

• To accurately measure the side length

• To ensure the side is perpendicular

• To find the hypotenuse

• To find the area