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
John H. Sides Burke summoned Sides, Freitag, and other Navy missile experts to his office for a briefing on the FBM research studies. By the end of the meeting, Burke had reversed Carney's veto and committed the Navy to an all-out FBM development program, directing Sides and Freitag to work out the operational details. Sides handled the Navy's side of negotiations over how exactly to implement the Killian Committee's recommendations, which called for the Navy to develop a ship-launched FBM similar to the Army's Jupiter IRBM. On September 13, 1955, President Dwight D. Eisenhower accepted the Killian Committee recommendations and directed the Navy