Learn to write the three trigonometric function ratios from a triangle

The video tutorial explains how to find and write the trigonometric ratios for angle R in a triangle. It covers identifying the hypotenuse, adjacent, and opposite sides relative to angle R. The tutorial then demonstrates calculating the sine, cosine, and tangent ratios using these sides. Finally, it discusses simplifying these ratios and using calculators for calculations.

What is the first step in finding the trigonometric ratios for a specific angle in a triangle?

• Identify the hypotenuse

• Circle the angle of interest

• Calculate the sine ratio

• Label all angles in the triangle

Which side is considered the adjacent side when referring to angle R?

• The side that forms the base of the triangle

• The longest side of the triangle

• The side between angle R and the 90-degree angle

• The side opposite to angle R

How is the sine ratio of an angle defined in a right triangle?

• Adjacent side over hypotenuse

• Opposite side over adjacent side

• Opposite side over hypotenuse

• Hypotenuse over opposite side

What is the cosine ratio of angle R in terms of side lengths?

• Hypotenuse over adjacent side

• Opposite side over hypotenuse

• Adjacent side over hypotenuse

• Adjacent side over opposite side

Why might it be unnecessary to simplify the trigonometric ratios in this context?

• Simplification changes the meaning of the ratios

• The ratios are only used for theoretical purposes

• Simplification is not required for calculator use

• The ratios are already in their simplest form