Would I used VGA cable for 100m length's?

Using a VGA cable for a 100-meter length is generally not recommended due to signal degradation over long distances. VGA signals can suffer from loss of quality and interference, leading to poor video performance. If you need to transmit video over such a distance, consider using a signal booster, active VGA extender, or an alternative solution like HDMI over Ethernet or fiber optics for better reliability.