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The answer to the item above would be the fourth choice, "none of the above". The measure of the angle formed by two intersecting perpendicular lines should be 90 degrees. The lines would form a section that is one-fourth of the Cartesian plane, thus, the 90 degrees. 
LudwigGR

Answer:

The correct answer is ‘‘none of the above’’.

Step-by-step explanation:

The angle formed by perpendicular lines is 90 degrees. According to the definition of perpendicularity, two lines are perpendicular if they meet at a right angle.

The definition of ‘‘right angle’’ tells us that the measure of a right angle is 90 degrees.

It is not difficult to deduce that the other three angles have the same measure. Then, two perpendicular lines form four right angles.

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