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Q1)Write the function definition for areaOfCircle() which prompts and reads radius then calculate and return the area of circle. Declare π (3.14159) as a memory constant. Note: Formula to calculate

C++ for Engineers and Scientists

4th Edition

ISBN:9781133187844

Author:Bronson, Gary J.

Publisher:Bronson, Gary J.

Chapter6: Modularity Using Functions

Section6.2: Returning A Single Value

Problem 11E: (Numerical) a. The following is an extremely useful programming algorithm for rounding a real number...

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Concept explainers

Types of Function

A function is a process or task that does some operation in the program. Some programming languages may contain built-in functions for certain commonly used tasks. Most programming languages also support user-defined functions, which means a user can write their own function to perform some operation. There are some libraries or header files that contain built-in functions for performing certain tasks.

Question

Q1)Write the function definition for areaOfCircle() which prompts and reads radius then calculate
and return the area of circle. Declare π (3.14159) as a memory constant. Note: Formula to calculate
area is πr²
(r is radius).

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