Answer:
The Rectangles and the right trapezoids (aka neither one of the triangle selections)
Step-by-step explanation:
If two polygons are similar then their corresponding sides are proportional.
The two rectangles and their dimensions are proportional: 22/13.75=16/10 = 1.6
The right triangles are not proportional: 18/8=2.25 and 30/17=1.76
The isosceles triangle and other is equilateral triangle, which can not be similar as they have different type of triangles.
The two right trapezoid are proportional: 7.5/3=30/12=12.5/5=20/8=2.5