111. Interior and exterior angles in polygons
Mathematics – Upper Primary Level
Mathematics - an interactive textbook consisting of over 100 e-lessons covering all the material taught in upper primary school (age 11-14). Multimedia presentations supplement traditional lectures and place mathematical problems into real-life contexts. Thousands of high quality interactive pages including illustrations, animations, films, 3D models, tests and activities make mathematics an easy subject to understand, follow and use in everyday life.
Mathematics – Upper Primary Level is part of the Universal Curriculum project.
Mathematics - an interactive textbook consisting of over 100 e-lessons covering all the material taught in upper primary school (age 11-14). Multimedia presentations supplement traditional lectures and place mathematical problems into real-life contexts. Thousands of high quality interactive pages including illustrations, animations, films, 3D models, tests and activities make mathematics an easy subject to understand, follow and use in everyday life.
Mathematics – Upper Primary Level is part of the Universal Curriculum project.
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