Final answer:
The three picture frames together have a total of 12 sides; each square frame has 4 sides and the trapezoid frame also has 4 sides.
Step-by-step explanation:
The question is asking to find the total number of sides in three different picture frames where two are square-shaped, and one is trapezoid-shaped. A square has four sides, so the two square frames have 4 sides each, making a total of 8 sides for both squares. A trapezoid generally has four sides as well. Therefore, all frames together have 8 (from the squares) plus 4 (from the trapezoid) equaling to 12 sides in total.