package main
import (
"bufio"
"fmt"
"math"
"os"
"strconv"
)
func sfa(f float64) float64 {
return math.Pi * math.Pow(f, 2) * 4
}
func vol(f float64) float64 {
return math.Pi * math.Pow(f, 3) * math.Pi
}
func dim(f float64) float64 {
return f * 2
}
func main() {
s := bufio.NewScanner(os.Stdin)
fmt.Printf("Enter a sphere's radius: ")
s.Scan()
f, _ := strconv.ParseFloat(s.Text(), 64)
sfaMain := sfa(f)
volMain := vol(f)
dimMain := dim(f)
fmt.Printf("The surfaace area of the sphere: %.3f
", sfaMain)
fmt.Printf("The volume of the sphere: %.3f
", volMain)
fmt.Printf("The diameter of the sphere: %.3f
", dimMain)
}