Calculate Area and Circumference of Circle

 Machine Problem

Write a program to solve area and circumference of the circle using Go programming language.

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Program Listing

/* circle.go

   Author : Mr. Jake Rodriguez Pomperada, MAED-IT, MIT

   Date   :  March 21, 2021Sunday  9:18 AM

Websites :www.jakerpomperada.com   and    www.jakerpomperada.blogspot.com

   Emails : jakerpomperada@gmail.com and jakerpomperada@yahoo.com

*/

package main

import "fmt"

 const PI float64 = 3.14 

func main(){

    var rad float64

    var ci float64

    var area float64

    fmt.Print("\n")

    fmt.Print("\tCalculate Area and Circumference of Circle")

    fmt.Print("\n\n")

    fmt.Print("\tEnter radius of Circle : ")

    fmt.Scanln(&rad)

    area = PI * rad * rad 

    fmt.Print("\n")

    fmt.Print("\tArea of Circle is : ")

    fmt.Printf("%0.2f ",area)

    ci = 2 * PI * rad

    fmt.Print("\n\n")

    fmt.Print("\tCircumference of Circle is : ")  

    fmt.Printf("%0.2f ",ci)

    fmt.Print("\n\n")

    fmt.Print("\n")

    fmt.Print("\tEnd of Program")

    fmt.Print("\n")

}