SOLUTION: angle D=110 degrees, angle F=30 degrees, angle E=?. What is the measure of angle DEF? Thank u

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Question 586269: angle D=110 degrees, angle F=30 degrees, angle E=?. What is the measure of angle DEF? Thank u

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
D=110 degrees, angle F=30 degrees, angle E=?. What is the measure of angle DEF?
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E + D + F = 180 degrees
E + 110 + 30 = 180
E + 140 = 180
E = 40 degrees
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Cheers,
Stan H.