Geometric Counting - 4 Row Triangle of Triangles

How many triangles can you find in this picture?

20 16 23 27

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2 solutions

Zandra Vinegar Staff
Aug 15, 2015

I answered 27 and it shows that is incorrect. Poor website.

Bibiy iutr - 1 year, 4 months ago

But.......How?!?!? How?!?!? How?!?!?

celeen chemali - 1 year, 1 month ago

Actually, there are 27 triangles.

Phu Tuan Lo - 5 years, 9 months ago

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There are 27 triangles painted purple in her diagram.

Andy Wong - 5 years, 8 months ago

How did you guys get 27?!

celeen chemali - 1 year, 1 month ago
Hadia Qadir
Sep 4, 2015

1s-triangle(16) 4s triangle(7) 9s traingle (3) and the complete trangle(1) = 27

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