How do you write a program to find the area of a square in qbasic?

To write a program in QBASIC to find the area of a square, you first need to prompt the user to enter the length of one side of the square. You can then calculate the area by squaring the length (multiplying it by itself) and finally display the result. Here's a simple example:

<code class="language-qbasic">INPUT "Enter the length of the side of the square: ", side
area = side * side PRINT "The area of the square is: "; area
</code>