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Angle Trisection (Posted on 2006-11-09) Difficulty: 3 of 5
ΔABC is equilateral. Point D lies on line BC such that C lies between B and D. Point E lies on side AC such that ED bisects angle ADC. Point F lies on side AB such that FE and BC are parallel. Point G lies on side BC such that GF=EF.

Prove that angle DAC equals twice angle GAC.

See The Solution Submitted by Bractals    
Rating: 2.5000 (2 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
re: I must be dense... Comment 6 of 6 |
(In reply to I must be dense... by Kenny M)

What is the measure of an inscribed angle with respect to its central angle?
  Posted by Bractals on 2006-11-28 22:23:50

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