Answer:
True.
Explanation:
In Geometry, inscribed means that the figure is enclosed and fits perfectly inside another geometric figure. In this case, if a square is inscribed a figure, each vertex or corner must touch the outer figure, otherwise wouldn't "fit perfectly".
Another example of this can be a circle inscribed in a square, in this case, the circumference of the figure touch the sides of the square, or the diameter of the circle must be equal to the side of the square, that's a "perfect fit".
Therefore, based on its definition, the statement is true.