Course: Trigonometry
Topic: Right Triangle Trigonometry
Subtopic: Calculators


Today's material is calculator intensive. We will learn about using a calculator or calculating software to convert between angle measures, evaluate trig functions on a calculator, and find the angle given the trig ratio. Have your calculator (handheld or software) at hand!


By the end of this topic you should know and be prepared to be tested on:


Terms you should be able to define: degree, minute, second, DMS vs. decimal degrees, inverse function, inverse trigonometric function

Mini-Lectures and Examples

STUDY: SOH-CAH-TOA Definition of Trig Functions & Calculators & Reference Angles

Supplemental Resources

You must be able to use a calculator (handheld or software) to do many of the processes covered in this lesson. If you have a handheld graphing calculator then these sites may help:

Supplemental Resources (optional)

Videos from James Sousa's MathIsPower4U:
Working with Degrees, Minutes, and Seconds
Determine Trigonometric Function Values on the Calculator
Intro to Inverse Trig Functions to Solve Right Triangles

rev. 2020-10-10