Drawing lines all over your property and determining their length and area is simply a matter of clicking to create points that Earth Pro will connect and quantify for you.
You can also edit your lines and areas, save your shapes, change units of measure, see elevation, and even import data and images to superimpose over your property.
It's not the most precise process in the world, but it's accurate enough for most uses. You can get links to the mobile and web versions of Earth Pro on Google's site.