Grade 11: Finding the vertex practice! September 9, 2013September 9, 2013 by Jon Orr Click picture to see full picture Share this: Click to share on X (Opens in new window) X Click to email a link to a friend (Opens in new window) Email Click to share on Reddit (Opens in new window) Reddit Click to share on Pinterest (Opens in new window) Pinterest Click to share on Facebook (Opens in new window) Facebook Like this:Like Loading...