Audio of distance formulas
https://drive.google.com/file/d/1IDJWhW3tdOz7AK-lUKbgu-PI5NZLN7Ug/view?usp=drivesd
Video of graph
https://drive.google.com/file/d/1I5a2vjL5jKBRr-daj0ykTLaLDkvbCRPk/view?usp=drivesdk
Audio of trigonometry ratio
https://drive.google.com/file/d/1GdDmSIBfA--PjPtXXWWldHe5g95Gl6YE/view?usp=drivesdk
Video of ogive graph
https://youtu.be/YoAwmTuNpWE
