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In the third grade, I calculated the perimeter of 10 square.
Three squares together form a rectangle. The circumference of this rectangle is 36 cm. What is the side length of a square?

Three squares together form a rectangle. The circumference of this rectangle is 36 cm. What is the circumference of a square?

Three squares together form a rectangle. The circumference of this square is 36 cm. What is the circumference of this rectangle?

Three squares make a rectangle, and the circumference of the rectangle is 36 cm. What is the circumference of a rectangle with two squares together?