Template:Area of a triangle/Metadata

This is a cluster with an incorrect pagename field in the metadata. Details:

If the "main article" exists then the pagename field in the metadata template is either incorrect or absent. It should be of the form "pagename = ARTICLE NAME ", and no text should be added to the page outside the form fields. Please update the metadata template here Note: If the "main article content" is a redirect and this is a subpage or metadata page the page may be obsolete. [Feel free to improve this templates text and links]