Basic formulae of trigonometry used in Heights and Distances Questions

In a right angle triangle,
\begin{aligned}
sin\theta = \frac{Perpendicular}{Hypotenuse}\\
cos\theta = \frac{Base}{Hypotenuse}\\
tan\theta = \frac{Perpendicular}{Base}\\
cosec\theta = \frac{Hypotenuse}{Perpendicular}\\
sec\theta = \frac{Hypotenuse}{Base}\\
cot\theta = \frac{Base}{Perpendicular}\\

\end{aligned}

In school we were use to taught a simple formula to learn it, lets refresh that.

Do you remember, "Pandit Badri Prasad Hari Hari Bole".