Question

I wonder who will be the smartest :)

Answer 1

Answer:

If the number of layers of the triangle to be formed will be n

then clearly "2n-1" triangles will be required in total.

Clearly, this works as for

n = 1: 2n-1 = 1

n=2 : 2n-1 = 3

n=3 : 2n-1 = 5

n=4: 2n-1 = 7

Hope this helps you ! ｡◕‿◕｡

Answer 2

2n -1 pls mark me as the brainless