क्या एक चतुर्भुज ABCD समांतर चतुर्भुज ह...

क्या एक चतुर्भुज ABCD समांतर चतुर्भुज हो सकता है यदि
(i) ` angle D + angle B = 180^(@) ` ?
(ii) AB = DC = 8 cm , AD = 4 cm और BC = 4.4 cm ?
(iii) ` angle A = 70^(@)` और `angle C = 65^(@)` ?

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