Wendy wants to learn how to write a computer program that can get the dimensions of a rectangle from the user and then tell the user what the area of the rectangle is. Which of these should Wendy research?

Answer 1

Wendy should research the following key concepts and topics to help her write a program that calculates the area of a rectangle based on user input:

1. Basic Programming Concepts: Understanding the syntax and structure of a programming language (e.g., Python, Java, C++, etc.) will be essential.

2. User Input: Learn how to get input from users in the chosen programming language. This often involves using functions or commands to read data from the console or command line.

3. Data Types: Understanding how to work with different data types, especially numeric types (integers or floats), since the dimensions of the rectangle will be numeric.

4. Variables: Learn how to declare and use variables to store the user's input for the rectangle's dimensions (length and width).

5. Arithmetic Operations: Understanding how to perform basic arithmetic operations, such as multiplication to calculate the area (Area = Length × Width).

6. Output: Learn how to display the results to the user using print statements or equivalent functions in the programming language.

7. Error Handling: (Optional but useful) Learn how to handle errors that may occur if the user inputs invalid data (like non-numeric values).

By focusing on these topics, Wendy will be well-equipped to write a program that meets her needs.