Circle Area Function

Write a function double area(double r) that returns the area of a circle using 3.14159 * r * r. Call it with area(2.0) and print the result with exactly 2 decimal places (see Expected Output).

Use <iomanip> fixed and setprecision(2).

Expected Output:

12.57↵

= newline. The output ends with a newline — print one after the last line.

Hints2 available

Topics:

Functions

Code Editor

Tab to indent (Esc then Tab to move on) · Ctrl+Enter to run · Shift+Alt+F to format · Ctrl+Space to expand shortcuts (cout, fori)

Your Output

Run your code to see the output here...

Test Cases

Run your code to see test case results.