\chapter{Trigonometry I}
\section{Right triangle trigonometry}
Answer the questions.
\begin{enumerate}
\item
What are the full names and the short names of the six trigonometric functions?
\item
How are the first three trigonometric functions defined using SOH-CAH-TOA?
\item
How are the other three trigonometric functions defined?
\item
Draw the standard \(30\)-\(60\)-\(90\) triangle.
\item
Draw the standard \(45\)-\(45\)-\(90\) triangle.
\item
Suppose that you know the values of \(\theta\) and \(b\) in the following picture:
\[\img{U4_3F28.png}{}{12em}{}\]
Which trig function would you use to find \(x\)?
\end{enumerate}