How do i email a screen shot from finder using mavericks 10.9.2

As stated in the article you posted from, here are some keyboard shortcuts for taking screenshots.

Select the one that best suits your needs:

• Command-Shift-3: Take a screenshot of the screen, and save it as a file on the desktop
• Command-Shift-4, then select an area: Take a screenshot of an area and save it as a file on the desktop
• Command-Shift-4, then space, then click a window: Take a screenshot of a window and save it as a file on the desktop
• Command-Control-Shift-3: Take a screenshot of the screen, and save it to the clipboard
• Command-Control-Shift-4, then select an area: Take a screenshot of an area and save it to the clipboard
• Command-Control-Shift-4, then space, then click a window: Take a screenshot of a window and save it to the clipboard

After you have the screenshot, start an email and drag/paste (depending on the method you choose) to the email.

You're welcome.

I'm glad I could help.