Public Forums Talk Boxes Private Messages Live Chat Socialize with smart people
More Community

Usenet Newsgroups : rec.puzzles Hall of Fame


The 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.

   
rec.puzzles
Newsgroup
FAQ
Hall of Fame
alt.brain.teasers
Newsgroup
FAQ
Categories : geometry : triangle.20.degrees.p

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
Online Now
12 users and 625 guests

Users In Chat
rashad
Follow Braingle!
Get a free account
  • Submit your own brain teasers
  • Vote on puzzles and track your favorites
  • Chat with other smart people
Sign up now!
Copyright © 1999-2017 | FAQ | Widgets | Links | Green | Subscribe | Contact | Privacy | Conditions | Advertise | Braingle Time: 1:45 pm
Sign In Create a free account