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given: \\(\\overline{fe} \\perp \\overline{gj}\\)\ \\(\\angle 6 \\cong …

Question

given: \\(\overline{fe} \perp \overline{gj}\\)\
\\(\angle 6 \cong \angle 1\\)\
prove: \\(\overline{fg} \perp \overline{kh}\\)\
step statement reason\
1 \\(\overline{fe} \perp \overline{gj}\\) given\
2 \\(\angle 6 \cong \angle 1\\) given\
3 \\(\overline{fg} \perp \overline{kh}\\) if corr. \\(\angle\\)s \\(\cong\\), then lines \\(\perp\\).\
validate this line is incorrect.

Explanation:

Step1: Analyze FE ⊥ GJ

Since \(\overline{FE} \perp \overline{GJ}\), \(\angle 6\) and \(\angle 5\) are complementary (they form a right angle), so \(m\angle 6 + m\angle 5 = 90^\circ\).

Step2: Use ∠6 ≅ ∠1

Given \(\angle 6 \cong \angle 1\), so \(m\angle 6 = m\angle 1\) (congruent angles have equal measures).

Step3: Find relationship of ∠1 and ∠5

Substitute \(m\angle 6\) with \(m\angle 1\) in \(m\angle 6 + m\angle 5 = 90^\circ\), we get \(m\angle 1 + m\angle 5 = 90^\circ\). This means \(\angle 1\) and \(\angle 5\) are complementary, so \(\overline{FG} \perp \overline{KH}\) (if two angles forming a linear pair with a transversal are complementary, the lines are perpendicular). The original reason was incorrect as it used parallel line reasoning, but we need perpendicular line reasoning here.

Answer:

To correct step 3: The statement \(\overline{FG} \perp \overline{KH}\) should have the reason "If two angles ( \(\angle 1\) and \(\angle 5\)) formed by a transversal ( \(GJ\)) with two lines ( \(FG\) and \(KH\)) are complementary, then the lines are perpendicular" (or using the right angle definition: since \(m\angle 1 + m\angle 5 = 90^\circ\), \(\angle FKH\) (or the angle between \(FG\) and \(KH\)) is \(90^\circ\), so they are perpendicular).