Nine points circle

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(Geom.)

a circle so related to any given triangle as to pass through the three points in which the perpendiculars from the angles of the triangle upon the opposite sides (or the sides produced) meet the sides. It also passes through the three middle points of the sides of the triangle and through the three middle points of those parts of the perpendiculars that are between their common point of meeting and the angles of the triangle. The circle is hence called the nine points circle or six points circle.

See also: nine

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Six points circle			nimbyism Nîmes nimiety niminy-piminy Nimious Nimitz Nimmer nimonic alloy nimps Nimravus Nimrod Nimrud nimus furandi Nimwegen Nimzowitsch Nin nin-sin Nina Niña Nina from Carolina nincompoop nine nine days' wonder nine iron Nine men's morris Nine points circle Nine points of the law nine times nine-banded armadillo Nine-bark nine-days wonder nine-eleven Nine-eyes nine-fold Nine-killer nine-membered nine-sided nine-spot nine-to-five nine-to-fiver ninebark ninefold Nineholes Ninepence ninepenny ninepin ninepin alley ninepin ball ninepins niner Ninescore			Nine Eagles State Park Nine Eleven Finding Answers Nine Hooks Nine in Nine Out Nine Inch Nails Nine Inch Richards nine iron Nine Man Morris Nine Men's Morris Nine Mens Morris Nine Mile Creek Conservation Council Nine Mile Lake Nine minutes to midnight Nine Months Later Nine Muses Nine Muses Nine Muses Nine Noble Virtues Nine of Clubs Nine of Diamonds Nine of Hearts Nine of Spades Nine on A Board Nine planets Nine planets Nine Planets Without Intelligent Life Nine Point One Gram Lead Injection Nine points circle Nine points of the law Nine Power Pact Nine Power Treaty Nine Princes in Amber Nine Seas Nine Story Plunge Nine Thousand Remote nine times nine times out of ten Nine Trey Gangsta Nine Women, One Month Nine woods Nine woods Nine Years War Nine Years' War Nine's complement Nine-banded nine-banded armadillo nine-banded armadillo Nine-bark Nine-bond rule nine-days wonder Nine-Dimensional Nine-eleven Nine-eyes nine-fold

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