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4 years ago

Please help i really need it

Mathematics

2 answers:

masha68 [24]4 years ago

7 0

Answer:

y = 108°

Step-by-step explanation:

Since AB and CD are parallel lines, then

3x - 12 and 2x + 16 are corresponding angles and congruent, thus

3x - 12 = 2x + 16 ( subtract 2x from both sides )

x - 12 = 16 ( add 12 to both sides )

x = 28

Thus

3x - 12 = 3(28) - 12 = 84 - 12 = 72°

y and 3x - 12 are adjacent angles and supplementary, thus

y = 180° - 72° = 108°

AlexFokin [52]4 years ago

4 0

Answer:

y = 108 degrees

Step-by-step explanation:

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