Function: Circle Area

Write a function circleArea(double r) that returns the area of a circle using pi = 3.14159 (area = pi * r * r). Call it with radius 5 and print the area rounded to two decimals (see Expected Output).

Print with printf("%.2f", ...).

Expected Output:

78.54

= newline. No newline after the last line.

Hints2 available

Topics:

Functions/Methods

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