Slope is essential in proving a polygon has right angles due to its ability to show perpendicular segments with negated reciprocal slope values.
Slope is the formula that must be used in the proof to show that a polygon has right angles. This is because slope can prove segments are perpendicular with negated reciprocal slope values. By demonstrating that the segments of the polygon are perpendicular using slopes, the presence of right angles can be established.
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