A cannon shell is fired from a battleship with an initial

Question

Compute all parts of given problem:

Problem: A cannon shell is fired from a battleship with an initial speed of 664 m/s, ignore air drag and assume the shell lands at the same height as it is launched.

Part A: What is the maximum range of the shell?

m

Part B: For the firing angle that gives the maximum range, what is the maximum height reached by the shell?

m

I need help to calculate the maximum height reached by the shell.