Trigonometry: Finding Missing Sides and Angles with the "SohCahToa" Trick

The video tutorial explains the basics of trigonometric functions, including sine, cosine, and tangent, and their application in solving problems involving triangles. It contrasts trigonometry with the Pythagorean theorem, emphasizing the need to label triangles correctly. The tutorial provides examples of finding missing sides and angles using trigonometric ratios, highlighting the importance of memorizing these functions and using inverse functions for angle calculations.

Which mnemonic can help you remember the trigonometric functions?

• Some Old Hags Caught A Herring Trawling Off America

• Some Of His Cats Are Happy To Own Apples

• Some Of His Chums Are Having Trouble Over Algebra

• Some Old Horses Can Always Hear Their Owner Approach

What is the first step in solving a trigonometry problem?

• Label the triangle with opposite, adjacent, and hypotenuse

• Use the Pythagorean theorem

• Find the missing angle

• Calculate the hypotenuse

When given an angle and one side, which side should you discard?

• The hypotenuse

• The side with no markings

• The side opposite the angle

• The side with the angle

If you have opposite and adjacent sides, which trigonometric function should you use?

• Tangent

• Sine

• Cosine

• Secant

How do you find an angle using trigonometric functions?

• Subtract the sides

• Add the sides

• Multiply the sides

• Use the inverse function