Tiling with regular pentagon

:نویسنده
Hoda Bornak

Regular Pentagon

Move sliders α and β in order. Can Regular Pentagon be used to tile the plane? - If yes, what is the rotation angle? - If no, what is the problem? and, - what other shape is needed to complete the tilings? * This activity is constructed by Nika Abdi and Saina, 7th grade students.