+0

0
137
5
+90

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

Mar 19, 2020
edited by Melody  Mar 19, 2020

#1
+110054
0

Please just put one question per post.

You can make new posts for the other two.

Mar 19, 2020
#2
+110054
0

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
+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
+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
0

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

Guest Mar 20, 2020