SOLUTION: how do you get from angle def f is right to d and e are complementary hurry please

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Question 342744: how do you get from angle def f is right to d and e are complementary hurry please
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
how do you get from angle def f is right to d and e are complementary hurry please
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The sum of the angles of a triangle = 180 degrees.
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If f is 90 degrees, e+d = 180-90 = 90 degrees.
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If c+d = 90, c and d are complementary angles.
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Cheers,
Stan H.