Assignment isn't equality — it's a name pointing to a value. Why the classic swap needs a temporary variable.
Short drills on what this video just taught. Write the code, run the checks, and reveal the answer only if you are stuck.
Two values are already bound for you: pi = 3.14159 and radius = 2.2.
Use them to compute the area of a circle (area = π · r²) and assign the result to area.