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sattari [20]
3 years ago
11

If a transversal is perpendicular to one of two parallel lines, then it is perpendicular to the other one

Mathematics
1 answer:
ivanzaharov [21]3 years ago
8 0
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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