A pair of vertical angles have measures (2y+5)° and (4y)°.
2 answers:
I believe with vertical angles, they are equal to each other.
Therefore,
2y + 5 = 4y
subtract 2y from both sides
5 = 2y
divide 2 from both sides
y = 5/2
2y+5=4y they are vertical angles which are eqaul
y=5/2
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