HELP ME PLZ Why are fivefold patterns more difficult to tessellate than fourfold or sixfold patterns?

a
Pentagons don't neatly fill a surface
b
It's impossible to accurately divide a circle into five equal sections
c
There are no vertical or horizontal lines in a fivefold pattern
d
Pentagons don't naturally occur in nature

Based on a comparison of the myths “the maori: genealogies and origins in new zealand” and “the raven and the first men: the beginnings of the haida,” if the maori and the haida people decided to create a myth together, what would most likely be the value expressed?

Poland a: nato b: warsaw pact c: not a member of either alliance

What is the main difference between primary and secondary sources? a. primary sources are historical documents, and secondary sources are modern-day documents. b. primary sources are derived from museums and archives, and secondary sources are created by history students and academics. c. primary sources are found in ancient places with a rich history, and secondary sources are found in historical journals and blogs. d. primary sources are created during a particular historical era, and secondary sources are created by studying primary sources.