PLEASE HELP ME.
'Lenny the leopard was out hunting one day and set off from his favourite tree on a bearing of 050 degrees for a distance of 20km to his favourite hunting ground of zebras, antelopes and wildebeest, as it has a particularly large watering hole.
The task is to discover how far North and how far East Lenny has travelled.'
I've tried multiple times to figure this out, but as hard as I've tried I can't seem to get the correct answer. I've used triganometry to work out the two distances, but when I use pythagorus to check my answers, they don't add up 
Any help would be much appreciated, as soon as possible please!
Thank you!