Angle between the hands of a clock

Script

#!/usr/bin/perl

print ("Enter the hour: ");
$hour = <STDIN>;
print ("Enter the minute: ");
$minute = <STDIN>;
$angle = $hour * 30 - $minute * 5.5;
print ("The angle between the hour  hand and the minute hand is $angle degrees \n");

Execution

Enter the hour: 3
Enter the minute: 0
The angle between the hour  hand and the minute hand is 90 degrees

Enter the hour: 6

Enter the minute: 0

The angle between the hour  hand and the minute hand is 180 degrees

Enter the hour: 6
Enter the minute: 15

The angle between the hour  hand and the minute hand is 97.5 degrees

Enter the hour: 6
Enter the minute: 30

The angle between the hour  hand and the minute hand is 15 degrees

Enter the hour: 4

Enter the minute: 15

The angle between the hour  hand and the minute hand is 37.5 degrees

Enter the hour: 4

Enter the minute: 20

The angle between the hour  hand and the minute hand is 10 degrees