3 years ago

What is the measure of Zy? 139 yº

Mathematics

1 answer:

andriy [413]3 years ago

3 0

Answer:

y = 41°

Step-by-step explanation:

∡ y and 139° are adjacent angles and sum to 180° , that is

∠ 1 + 139° = 180° ( subtract 139° from both sides )

∠ 1 = 41°

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