What is a required for the Perpendicular to Parallels Theorem to be applied?
A. collinearity
B. The planes must be perpendicular.
C. The lines must lie in the same plane.
D. All lines must intersect.

Respuesta :

The best and most correct answer among the choices provided by your question is the third choice or letter C.

The condition that the lines must lie in the same plane is required for the Perpendicular to Parallels Theorem to be applied.

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Answer:

C. The lines must lie in the same plane.

Step-by-step explanation:

Perpendicular to Parallels Theorem states that in a plane, if two lines are perpendicular to the same line, then they are parallel to each other.

So, the best possible answer is : The lines must lie in the same plane.

If lines are perpendicular to the same plane, they are parallel.