PYTHON question Question 2: Area Part 1: Write definitions for these functions: sphereArea(radius) returns the surface area of a sphere having the given radius. sphere Volume (radius). Returns the volume of a sphere having the given radius. from math import pi def sphere_area(r):     """ Area of a sphere with radius r."""     *** YOUR CODE HERE *** def sphere_volume(r):     """ Volume of a sphere with radius r."""     *** YOUR CODE HERE ***   Part 2: Rewrite the above functions with lambda expressions and assign them to respective names. You can just use a Python shell and take the screenshot of the code.

Code is in Python

Please submit a flowchart of your program for your project below. Need a class which will contain: Student Name Student Id Student Grades (an array of 3 grades) A constructor that clears the student data (use -1 for unset grades) Get functions for items a, b, and c, average, and letter grade Set functions for items a, n, and c Note that the get and set functions for Student grades need an argument for the grade index. Need another class which will contain: An Array of Students (1 above) A count of number of students in use You need to create a menu interface that allows you to: Add new students Enter test grades Display all the students with their names, ids, test grades, average, and letter grade Exit the program Add comments and use proper indentation. Nice Features: I would like that system to accept a student with no grades, then later add one or more grades, and when all grades are entered, calculate the final average or grade. I would like the system to display the…