यदि एक समान्तर चतुर्भुर्ज `ABCD` है तब `angleA-angleC`=

If ABCD is a parallelogram then angleA-angleC=

AB and CD are respectively the smallest and largest sides of a quadrilateral ABCD. Show that angleA gt angleC and angleB gt angleC .

AB and CD are respectively the smallest and longest sides of a quadrilateral ABCD. Show that angleA lt angleC and angleB gt angleD .

Find angleA+angleB+angleC+angleD

In the parallelogram ABCD , angleB-angleC=60^(@). "Find"angleA and angleD

ABCD is trapezium in which AB"||"CD . If AD =BC , show that angleA=angleB and angleC=angleD .

ABCD is trapezium in which AB"||"CD . If AD =BC , show that angleA=angleB and angleC = angleD .