Write a c++ program to calculate the area of a circle and display the result. Use the formula  Area= pir2 where pi is approximately equal to 3.1416  Sample Input: Enter the value of radius: 1  Sample output: The area is 3.1416

C++ for Engineers and Scientists
4th Edition
ISBN:9781133187844
Author:Bronson, Gary J.
Publisher:Bronson, Gary J.
Chapter3: Assignment, Formatting, And Interactive Input
Section3.2: Formatting Numbers For Program Output
Problem 3E: (Practice) Write a C++ program that displays the results of the expressions...
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Write a c++ program to calculate the area of a circle and display the result. Use the formula 

Area= pir2 where pi is approximately equal to 3.1416 

Sample Input: Enter the value of radius: 1 

Sample output: The area is 3.1416

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ISBN:
9781133187844
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Bronson, Gary J.
Publisher:
Course Technology Ptr