If a regular polygon of ten sides is inscribed in a circle of radius r units, then, if s units is the length of the side, r/s=s/(r-s) Solve this formula for s in terms of r.

## Distance traveled from the Velocity-Time Graph| University Physics

The graph below shows the velocity versus time graph for a certain object. What is the distance traveled by the object between times t = 2 s and t = 8 s?