SOLUTION: Two vertical angles are complementary. What is the measure of one?

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Question 125885: Two vertical angles are complementary. What is the measure of one?
Answer by MathLover1(20850) About Me  (Show Source):
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Vertical angles have the same degree measurement.

Two angles are complementary if their measures add up to 90.
so, you will have:
angle A
angle B
by the definition above A=B
and 2A=90
A=90%2F2
A+=+45%5Eo.........=> and angle B=45%5Eo