(Answered): 3. (10 marks) a) Write a simple Python program to calculate the volume of a cylinder with radius r ...

3. (10 marks) a) Write a simple Python program to calculate the volume of a cylinder with radius r and height h. The program interacts with the user: Ask user input the radius Ask user input the height Display the result, similar to the sample display output *Given the formula V=rn?h, using 3.14 for the value of it Sample Program Output C:Windowssystem32cmd.exe ? Input the radius:1 1.5 User Input Input the height:13 Volume of the cylinder is [21. 1951 (5 marks] b) Write a simple Python program using nested-loop to displays a triangular pattern using the symbol "+", as the sample display below. Printing at most ONLY one "+" symbol is allowed in each execution of your print() statement. Sample Program Output +++ +++++ ++ +++ ++ ++ +++ ++ ++++ ++++++