Question

How many triangle are there :P
medal for first answer :P

Answer 1

Many of them.

Answer 2

cute :P

Answer 3

One on the outside.
Three oriented horizontally.
Five vertically.
In the rightmost corner, we have three small triangles formed.
Then going from right to left, we can see one-two-three-four... four small triangles.

1 + 3 + 5 + 3 + 4 = 16.

The above are the basic ones. There are more. Gimme a second to count the rest.

Answer 4

:P ok more