SOHCAHTOA - Finding Missing Angles

This video tutorial explains how to use SOHCAHTOA to find missing angles in right-angled triangles. It begins with an introduction to the concept, followed by examples using tangent and cosine to calculate angles. The video includes a practice question and concludes with a summary of the key steps: labeling the sides, choosing the correct trigonometric function, and using inverse functions to find the angle.

What does SOHCAHTOA help you find in a right triangle?

• The area of the triangle

• The length of the hypotenuse

• Missing sides and angles

• The perimeter of the triangle

When using SOHCAHTOA, which function is used when you have the opposite and adjacent sides?

• Secant

• Cosine

• Sine

• Tangent

What is the inverse function of tangent commonly called?

• Arcsin

• Arctan

• Arcsec

• Arccos

In the example using cosine, what are the two sides involved?

• Opposite and Adjacent

• Opposite and Hypotenuse

• Adjacent and Hypotenuse

• Hypotenuse and Base

What is the result of using inverse cosine on the ratio of 1 divided by 3?

• 30 degrees

• 45 degrees

• 60 degrees

• 70.5 degrees