Triangle, triangle, circle, circle, square, square, square, square, square. What figure is the 100th and how many circles are there in the 100th figure

Triangle, triangle, circle, circle, square, square, square, square, square. What figure is the 100th and how many circles are there in the 100th figure

Repeat every nine
100/9=11…… one
It's a triangle
There are 11 * 3 = 33 circles