Question #1: 4 (Points) Write a C++ program to check whether a character is uppercase or lowercase alphabet. Note: Ask the user to input the needed data. Question #2: 3. (Points) Write a ct program to find the perimeter and area of a rectangle. Note: Ask the user to input the needed data. 3. (Points) Question #13: 1) Read the values of three variables a, b and c, write a program to compute and display the value of X, where x = 1+ - + a.b ce(a-b) +5 a