
To explain:
Reason for keyboard stand always remain parallel to the floor.

Answer to Problem 22MCQ
Explanation of Solution
Given information:
The top of the stand represent one side of the quadrilateral and let bottom of the stand rep[resent the opposite side of the similar quadrilateral.
The legs can now represent the diagonals of the quadrilateral. Since the legs are joined at their midpoints, the legs bisect each other. If the diagonals of a quadrilateral bisect each other, than the quadrilateral is a parallelogram.
The opposite sides of a parallelogram are always parallel. Therefore, the keyboard will always be parallel to the floor.
Chapter 6 Solutions
Geometry, Student Edition
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Elementary Statistics: Picturing the World (7th Edition)
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