Measure that angle (Posted on 2002-06-18)

Given that:

ABC is an isosceles triangle in which

    AB = AC

The lengths of the following segmets are equal:

    AD
    DE
    EC
    BC

Find the measure of angle A.

See The Solution	Submitted by vohonam
Rating: 4.2000 (20 votes)

	Subject	Author	Date
	Puzzle Solution With Explanation	K Sengupta	2007-05-31 05:19:37
	Answer	K Sengupta	2007-05-31 05:18:20
	Flipping solution "cleaned up"	McWorter	2005-03-07 03:34:32
	Yet another "flippin'" solution!	McWorter	2005-03-06 04:22:23
	Solution	Antonio	2003-09-04 09:51:01
	soluTion,not soluCion	Tim Axoy	2003-03-30 08:04:56
	solucion	jen h	2002-12-10 12:57:42
	re(6): Solution?	Nick Reed	2002-06-22 13:34:16
	re(5): Solution?	levik	2002-06-21 12:55:12
	Vohanam's solution "cleaned up"	TomM	2002-06-21 11:08:36
	re(4): Solution?	Nick Reed	2002-06-21 07:06:35
	re(3): Solution?	levik	2002-06-21 05:31:55
	re(2): Solution?	Nick Reed	2002-06-20 23:25:16
	re: Sorry Levik ! I agree with you....	TomM	2002-06-20 20:26:21
	Wow ! Maybe my puzzle was attracted many people (witness are so many comments.)	vohonam	2002-06-20 19:45:11
	Sorry Levik ! I agree with you. Really ! If we don't use math in a long time. We can can forger easily. Me too.	vohonam	2002-06-20 19:43:01
	re: Hey I solved it when I was in my 9th grade.	levik	2002-06-20 18:46:51
	The Light Dawns	TomM	2002-06-20 18:46:21
	Hey I solved it when I was in my 9th grade.	vohonam	2002-06-20 18:19:12
	Reply to Tom	vohonam	2002-06-20 18:15:11
	re(3): Hints ! like answer !	TomM	2002-06-20 17:54:45
	I think we're getting there.	TomM	2002-06-20 17:44:34
	re(2): Hints ! like answer !	Happy	2002-06-20 17:18:20
	I posted all my solution.	vohonam	2002-06-20 17:13:52
	No Subject	TomM	2002-06-20 17:07:41
	re(2): Hints ! like answer !	vohonam	2002-06-20 17:07:07
	re: Hints ! like answer !	levik	2002-06-20 16:25:00
	Hints ! like answer !	vohonam	2002-06-20 08:14:17
	re(2): Oh wait - I gottit!	levik	2002-06-20 04:24:35
	re(2): Oh wait - I gottit!	Nick Reed	2002-06-19 23:06:07
	re: Oh wait - I gottit!	vohonam	2002-06-19 17:42:02
	This is only a geometrical problem. Not involve Trigonometrical problem.	vohonam	2002-06-19 17:36:18
	re(3): Solution?	Happy	2002-06-19 05:39:30
	re(2): Solution?	levik	2002-06-19 04:57:12
	re: Solution?	Nick Reed	2002-06-19 04:52:06
	Solution?	levik	2002-06-19 04:41:26
	re: To Charadenine	Cheradenine	2002-06-19 03:26:30
	re(2): To Charadenine	Nick Reed	2002-06-19 03:13:57
	re: To Charadenine	TomM	2002-06-19 03:10:28
	Looks good	TomM	2002-06-19 03:06:18
	To Charadenine	TomM	2002-06-19 02:49:25
	re(2): Oh wait - I gottit!	Nick Reed	2002-06-19 01:58:03
	re: Oh wait - I gottit!	Cheradenine	2002-06-19 00:57:20
	re: Oh wait - I gottit! (addendum - missing point)	Nick Reed	2002-06-19 00:15:40
	Oh wait - I gottit!	Nick Reed	2002-06-19 00:14:04
	Hmmmm	Nick Reed	2002-06-18 23:24:13
	re(2): A new theory : Back to Square 1	TomM	2002-06-18 19:50:02
	re: Send to Levik !	levik	2002-06-18 18:17:11
	re: A new theory	levik	2002-06-18 18:12:42
	Send to Levik !	vohonam	2002-06-18 17:13:10
	A new theory	TomM	2002-06-18 16:51:28
	re(2): There are some ways to solve this	levik	2002-06-18 14:04:02
	re: There are some ways to solve this	TomM	2002-06-18 13:53:45
	Second thoughts	TomM	2002-06-18 13:52:27
	There are some ways to solve this	vohonam	2002-06-18 05:37:43
	Hmmm...	friedlinguini	2002-06-18 04:20:22
	re: Question	levik	2002-06-18 04:00:24
	First thoughts	TomM	2002-06-18 02:20:23
	Question	Nick Reed	2002-06-17 23:33:01