Question

how many triangles are there in the figure ?

Answer 1

Answer:

There are 22 bro

Step-by-step explanation:

Count them all

Answer 2

Answer:

1, 4, 7, 10

Step-by-step explanation:

Going up by 3.

First term is 1

Hence rule would be:

Tₓ = 1 + (x - 1)*(3)