Go language program to calculate parallelogram circumference

Following program shows you how to calculate parallelogram circumference.
This program gets parallelogram base and side from user and calculates circumference and prints it using following formula
Circumference = 2 X base X side

package main

import "fmt"

func main() {

  var parallelogramBase float64
  var parallelogramSide float64
  var circumferenceOfParallelogram float64
  fmt.Println("Please enter base of parallelogram:")
  fmt.Scanf("%f", &parallelogramBase)
  fmt.Println("Please enter side of parallelogram:")
  fmt.Scanf("%f", &parallelogramSide)
  circumferenceOfParallelogram = 2 * (parallelogramBase + parallelogramSide)
  fmt.Println("Circumference of parallelogram is: " , circumferenceOfParallelogram)
}

Output:

Please enter base of parallelogram:
 30
Please enter side of parallelogram:
 25
Circumference of parallelogram is:  110