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Can you please help with any question of these? they like a puzzle and I'm truly stuck on them :( 

 

1. https://free-picload.com/image/qqGP6z

 

 

 

 

 

 

2. https://free-picload.com/image/qqGW3B

3. https://free-picload.com/image/qqGm0s

 Mar 19, 2020
edited by Melody  Mar 19, 2020
 #1
avatar+110054 
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Please just put one question per post.

 

I will help you by displaying the first one properly.

 

You can make new posts for the other two.

 Mar 19, 2020
 #2
avatar+110054 
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All I have so far is that the angle is 45+Beta

 

Where beta is the middle size angle of the congruent triangles.   

 

I have not worked out what the exact size of beta is.                                                                    

 Mar 19, 2020
 #3
avatar+1029 
+3

1)    That angle is  105º        ( Tthis works with 30-60-90 triangles only )

 

I tried using  20-70-90 triangle, and the result was 108º, plus black (red) line doesn't bisect the top right angle.

 

 Mar 19, 2020
edited by Dragan  Mar 23, 2020
edited by Dragan  Mar 23, 2020
 #4
avatar+110054 
0

Thanks Dragan,

That ties in with my finding but .... 

Mmm we are still looking for a proper explanation of why it must be a 30,60 90 triangles.

Melody  Mar 20, 2020
 #5
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0

Thanks Melody and Dragan. 
I will post other questions in a new post. 

Guest Mar 20, 2020

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