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11-17.

Jillian is trying to construct a square. She has started by constructing two perpendicular lines, as shown at right. If she wants each side of the square to have length k, as shown at right, describe how she should finish her construction. Homework Help ✎

How can you use k and the axes to create this square?

Jillian should construct an arc centered at P with a radius k so that it intersects n and m each once (call these intersections R and S). She should then make two more circles with radius k, centered at R and S. The fourth vertex lies where these two circles intersect.