Point E is on AC,point D is on BC
CD=AE,∠DAC=∠ABE,∠C=2∠ABE.
Prove:AB=AC
Thank you!
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1Can you share your thoughts on the problem, and explain what you've tried and what did / didn't work? – Sep 07 '13 at 21:25
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is D mid point of BC and E mid point of AC – Mr. Math Sep 07 '13 at 21:27
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I cant see the information on the corner of image can you share it with us please – Mr. Math Sep 07 '13 at 21:29
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@Jam the problem doesn't say D and E are mid points. – Johiten Sep 07 '13 at 21:31
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@Jam the words in the image is the problem.I have translated the problem into English. – Johiten Sep 07 '13 at 21:33
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there is a perpendicular sign there so i am a little confused by – Mr. Math Sep 07 '13 at 21:34
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@T.Bongers I tried to draw a circle to use the angles,made some isosceles triangles in the picture.But I can't prove AB=AC... – Johiten Sep 07 '13 at 21:36
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Where is the perpendicular sign?? – Johiten Sep 07 '13 at 21:38
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Are you sure it is a "perpendicular" sign? Or some Chinese character, with an extra little segment to the right... – GEdgar Sep 07 '13 at 21:38
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That is a sign meaning angle.∠A means Angle A – Johiten Sep 07 '13 at 21:39
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ok then for AB=AC angle B= angle C try some angle woking for example call angle DAC=X then angle C=2X – Mr. Math Sep 07 '13 at 21:44
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I confirm that the translation is exact and correct. The funny looking symbol '上' means "on" in Chinese. It is definitely not '┴'. – Mick Mar 01 '14 at 15:05