Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleHELP GEOMETRY PROVE ITSELF.AuthorsWilliamson, Donald A.PublicationSchool Science & Mathematics, 1958, Vol 58, Issue 1, p10ISSN0036-6803Publication typeArticleDOI10.1111/j.1949-8594.1958.tb08168.x