The total number of squares and rectangles in the following figure is:

Axis-aligned: the big square split by a cross into 4 small squares gives 9 rectangles (4 small squares + 1 big square + 4 half-rectangles). Tilted: the central diamond plus 4 attached squares form a plus shape; each arm of 3 in a line gives 3 singles, 2 doubles and 1 triple, so 5 tilted squares + 6 tilted rectangles = 11. Total 9 + 11 = 20.