Hendecagon Hendecagon In geometry, a hendecagon (also undecagon or endecagon) or 11-gon is an eleven-sided polygon. (The name "hendecagon", from Greek "hendeka" "eleven" and "gon–" "corner", is often preferred to the hybrid "undecagon", whose first part is formed from Latin "undecim" "eleven".) A "regular hendecagon" is represented by Schläfli symbol {11}. A regular hendecagon has internal angles of 147.27 degrees (=147 formula_1 degrees). The area of a regular hendecagon with side length "a" is given by As 11 is not a Fermat prime, the regular hendecagon is not constructible with compass and straightedge. Because 11 is not a Pierpont prime, construction
How Long Has This Been Going On? How Long Has This Been Going On? "How Long Has This Been Going On?" is a song composed by George Gershwin, with lyrics by Ira Gershwin for the musical "Funny Face" in 1928. Replaced by "He Loves and She Loves" in "Funny Face", it was eventually introduced in the musical "Rosalie" (1928) by Bobbe Arnst as Mary O'Brien. The lyrics used as first released by Gershwin started with the refrain: "As a tot, when I trotted in little velvet panties,/ I was kissed by my sisters, my cousins, and my aunties./ Sad to tell, it was hell, an inferno worse