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Mathematics 21 Online
OpenStudy (lizz123):

In quadrilateral DEFG, angle D is a right angle 90 . The measure of angle E is half than the measure of angle D, I got 30. The measure of angle F is three times the measure of angle E, I got 90. Sketch the quadrilateral and label the measure of each angle.

OpenStudy (anonymous):

Half of 90 is not 30.

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