In order to solve the equation, set up a proportion. Use the similar sides together!
1. 16/8 = x/20.... Similar sides are in one ratio and they equal another ratio...."x" represents the side of VS
2.Solve for "x" by cross multiplying: 8x = 320
3. Divide by 8 to find "x": x = 40
Side VS equals 40. Hope this helped :)