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If a transversal is perpendicular to one of two parallel lines, then it is perpendicular to the other one
also.
Given: k⊥m, m║n
Prove: k⊥ n

If a transversal is perpendicular to one of two parallel lines then it is perpendicular to the other one also Given km mn Prove k n class=

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lesliekolleroxrkcf
the right angle up at the number one and the unknown angle down at 2 are corresponding angles. corresponding angles are congruent. therefore angle down by two is a right angle and so the transversal is perpendicu lar to both lines

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