I go over how to find an angle in a right triangle with the use of trigonometry and a calculator. @ColfaxMath
Good resources: https://www.amazon.com/shop/colfaxmath (paid link)
ASVAB Study Guide 2023-2024: The Complete Exam Prep with Practice Tests and Insider Tips & Tricks: https://amzn.to/4aaU9zB
Mathematics for Carpentry and the Construction Trades, https://amzn.to/3hy0ZUJ
Measurement Toolbox cards: https://www.printplaygames.com/product/measurement-toolbox/
Get a TopSaw: https://amzn.to/2MZPFUR