Trigonometry - Worked Examples - Finding Unknown Side Length

SOHCAHTOA!!!! In this video, we go through a few examples and sample calculations using sine, cosine and tangent to find out an unknown side length. The video also goes through a couple of common trigonometric ratios such as sin(30)=0.5 and tan(45)=1. Did you work out why sin(30)=0.5? If you did, write it in the comments below. Key Formulas: sin(theta)=O/H cos(theta)=A/H tan(theta)=O/A