November 8th, 2018, 10:15 AM  #11 
Math Team Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 13,804 Thanks: 971 
Wonder why a "teacher?" would provide such a misleading diagram...

November 8th, 2018, 10:40 AM  #12  
Newbie Joined: Oct 2018 From: Turkey Posts: 23 Thanks: 0  Quote:
although there have been efforts lately to change that thanks for helping  
November 8th, 2018, 11:23 AM  #13 
Math Team Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 13,804 Thanks: 971 
Soooooo: teachers are turkeys??!!

November 8th, 2018, 05:02 PM  #14 
Global Moderator Joined: Dec 2006 Posts: 20,109 Thanks: 1909 
The problem is easy if the angles at A and C are right angles. However, equal angles are not normally marked with a dot unless their value isn't being given. The problem is much more interesting if one doesn't assume that they are right angles. It seems that it's still the case that the value of x can be shown to be 2√6, but the angles at A and C needn't be right angles. For example, the diagram can be as shown below. Triangles.PNG 
November 9th, 2018, 01:08 AM  #15 
Newbie Joined: Oct 2018 From: Turkey Posts: 23 Thanks: 0  Last edited by ketanco; November 9th, 2018 at 01:50 AM. 

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