SOLUTION: Let ABCD be a quadrilateral such that angles ABC and ADC are right angles if segments AB and CD are parallel, then BCD and DAB are right angles.
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-> SOLUTION: Let ABCD be a quadrilateral such that angles ABC and ADC are right angles if segments AB and CD are parallel, then BCD and DAB are right angles.
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Question 1013442: Let ABCD be a quadrilateral such that angles ABC and ADC are right angles if segments AB and CD are parallel, then BCD and DAB are right angles. Answer by fractalier(6550) (Show Source):
