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Author Topic: How many triangles are in this image?  (Read 673 times)
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« Reply #25 on: April 22, 2018, 08:56:06 PM »

I kept losing count at 41
You should get stuck at 40 unless you start using the lines and white space creatively.
There are 10 on each row otherwise.

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« Reply #26 on: April 23, 2018, 04:58:10 AM »

I kept losing count at 41

My guess is the 41 comes from double counting the big one. 

I counted that one (1), then the (4+4+4+4) one across, (4+4+4) two across, (4+4) three across and then the (4) four across without recognizing that the largest 4 across was also the big one. 

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