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
Many a Slip (radio series) murder mystery round with the Many a Slip detective; travelogues of different countries and the Many a Slip chef and his way of cooking with ingredients that no sane chef would use. For each series the chairman kept a running total of how many games each team had won and in the last show he announced which team had won the series. In the mid sixties it was tried out on TV for one series. Peter Haigh took over as chairman and Steve Race's contribution was replaced by a spot the mistakes in the picture round, but it was deemed