Usenet Newsgroups : rec.puzzles Hall of FameThe rec.puzzles Hall of Fame is a compilation of over 500 of the most popular puzzles that have been posted and discussed in the rec.puzzles newsgroup. In most cases a detailed solution has been provided. Many of these puzzles also appear in Braingle's own collection. |
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In isoceles triangle ABC angle A=20, B=80, C=80. Draw a line from C to side AB. Call this line CD and angle BCD=70. Draw a line from B to side AC. Call this line BE and angle CBE=60. Now draw line DE. What is angle CDE?
Solution
