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wu :: forums    riddles    medium (Moderators: william wu, Eigenray, SMQ, Grimbal, ThudnBlunder, Icarus, towr)    parallelogram « Previous topic | Next topic » Pages: 1  Reply Notify of replies Send Topic Print    Author  Topic: parallelogram  (Read 238 times) tony123 Junior Member     Posts: 61 parallelogram   « on: Aug 27th, 2007, 6:34am » Quote Modify ABCD a parallelogram and BCED a cyclic quadrilateral , AN stret line cut interior segment CD in M and stret line BC in N ,let ME=NE=CE show that  the  m(angle) betwen AN  and  CE  = 90° IP Logged Grimbal wu::riddles Moderator Uberpuzzler     Gender: Posts: 7527 Re: parallelogram   « Reply #1 on: Aug 27th, 2007, 7:20am » Quote Modify Could you provide a picture? IP Logged tony123 Junior Member     Posts: 61 Re: parallelogram   « Reply #2 on: Aug 27th, 2007, 8:12am » Quote Modify http://www.mathyards.com/attach/upload2/wh_60109863.bmp IP Logged Pages: 1  Reply Notify of replies Send Topic Print Forum Jump: ----------------------------- riddles -----------------------------  - easy => medium   - hard   - what am i   - what happened   - microsoft   - cs   - putnam exam (pure math)   - suggestions, help, and FAQ   - general problem-solving / chatting / whatever ----------------------------- general -----------------------------  - guestbook   - truth   - complex analysis   - wanted   - psychology   - chinese « Previous topic | Next topic »

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