How many triangles do you see?

boing
23

18 is it…

24

I came up with 12 and thought nah… there’s more and got 18 but I didn’t count them all. I did maths… I wonder if it was the same maths as pop-sci guy. I counted the first two rows and though hey there’s a pattern.

25

I didn’t.

26

I lost count around 68.
When you count the thick and thin blue lines.

7 Likes
28

I’m working on an uninterrupted line basis. Lines are not crossing the outside border of the large triangle that contains 3 smaller triangles and 6 trapezoids. So I think 3 is acceptable count of circles.

29

8 Likes
30

Cross your eyes and count again.

1 Like
31

I also counted eightee – wait a minute…

en1

…

en2

…

en3

son of a bitch

36 Likes
32

The horizontal line also counts as a circle of infinite radius. This is especially something to watch for in the complex lane, which, of course that’s where we want to be.

1 Like
33

­ I get 22

2 Likes
34

I get 18 - take the topmost tier only - there are 6. Then multiply by 3 layers

1 Like
35

triangles

Tonight I make a flip book.

8 Likes
36

:heavy_plus_sign: the A in many
:heavy_plus_sign: the A in triangles

1 Like
37

From the article:

One wiseguy counted the triangles in the A’s in the question itself,

I count two wiseguys.

Three, three wiseguys!

FOUR! FOUR Wiseguys, ha ha ha.

5.PNG

10 Likes
38

Downloadjpeg_phixr

1 Like
39

e.g. How many triangles are there:

image

There are 385: height * width * (width + 1) / 2

On another note, I sincerely hope the point of this puzzle is not to count the triangles in the A’s. That takes a fun math problem and turns it into:

7 Likes
40

18, but I’ve done puzzles like this before. :slight_smile:

1 Like
41

Well, to be pedantic, the question asks how many I see, so any honest answer is correct.

12 Likes
42

I consider that to be a valid answer.

10 Likes
43

There are none, pixels are rectangular.

11 Likes