Here are some formulae:
Maximum height of projectile: $$h=\frac{v^2_{i}sin^2\theta}{2g}$$
Total time of flight: $$t = \frac{2v_{i}sin\theta }{g}$$ Range of
projectile: $$R= \frac{v^2_{i}}{g} sin2\theta$$ Path (trajectory)
of projectile: $$y= x tan\theta - \frac{g}{2v^2_{i}
cos^2\theta}x^2$$