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29-09-2017
Mathematics

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∠A and ∠B are vertical angles with m∠A=x and m∠B=5x−80 .

What is m∠A ?

Respuesta :

apzey17 apzey17

29-09-2017

20 degrees
vertical angles are equal, so 5x-80=x
solve for x and you get 20

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