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In a plane line b is perpendicular to line f , line f is perpendicular to line g and line h is parallel to line f which of the followings must be true

In a plane line b is perpendicular to line f line f is perpendicular to line g and line h is parallel to line f which of the followings must be true class=

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sqdancefan
The 3rd selection is the correct one.

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In a plane, lines perpendicular to the same line are parallel to each other, and vice versa.

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