Respuesta :

Answer:

4. AB

Step-by-step explanation:

In the diagram, we see that the angle formed by the intersection of AB and EF is marked as a right angle.  The angle formed by the intersection of AB and GH is also marked as a right angle, as is the angle formed by the intersection of AB and IJ.  This means that AB is perpendicular to all three lines, since perpendicular means it meets at a right angle.

The line that must be perpendicular to GH is line AB. The correct option is 4. AB

To determine which line must be perpendicular to GH,

First, we will define what is meant by perpendicular lines.

Perpendicular lines are two distinct straight lines that meet or intersect each other at 90° or a right angle.

(NOTE: A right angle = 90°)

From the diagram,

The line that intersects GH to form a right angle is line AB.

Hence, the line that must be perpendicular to GH is line AB

In addition, lines EF and IJ also intersect line AB to form a right angle, this means lines EF and IJ are parallel to line GH

Learn more here: https://brainly.com/question/11435443

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