2 years ago

HELP! Find the measure for A) 127° B) 131° C) 135° D) 139°

Mathematics

1 answer:

Naya [18.7K]2 years ago

8 0

Answer:

B) 131°

Step-by-step explanation:

-4a + 139 = 4a + 123 because they are vertical angles

-4a + 139 = 4a + 123

reduce:

8a = 16

a = 2

4(2) + 123 = 131°

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