Someone with more experience, please check me, but I came up with:
9 inch block
3-1/2 inch squares
10 inch half square triangle
Stripped half square triangle approx.
3-3/16" paper piece template (3-3/4" cut strips)
12 inch block
4-1/2 inch squares
13 inch half square triangle
Stripped half square triangle approx.
4-3/16" paper pieced template (4 3/4" cut strips)