To be honest I thought the same... in this day and age, everything can be found through search engines..
So to resize your image, using your keyboard type in "google.com" and click on the search tab (the long white box with light blue outline) and just like previously, type in "resize images". There will be many results, but i usually prefer the top 3 results. Choose one and there should be a simple guide on nearly any of the sites.