एक समान्तर चतुर्भुर्ज `ABCD` में यदि `angleA=80^(@)` और `angleB=`

In DeltaABC, BC=AB and angleB=80^(@). Then, angleA= ?

In a quadrilateral ABCD, E is a point in the interior of the quadrilateral such that DE and CE are the bisector of angle D and angle C , respectively, If angle B = 82^@ and angle DEC = 80^@ then angle A = ? एक चतुर्भुज ABCD में, E, चतुर्भुज के भीतरी भाग का एक बिंदु इस प्रकार है की DE और CE क्रमश angle D और angle C , के द्विभाजक हैं, यदि angle B = 82^@ और angle DEC = 80^@ तो angle A = ?

In a rhombus ABCD, if angleA=60^(@) find angleB, angleC&angleD .

The internal bisectors of angleB and angleC of DeltaABC meet at O. If angleA=80^(@) then angleBOC is :

If ABCD is a cyclic quadrilateral with angleA = 50^(@) , angleB = 80^(@) , then angleC and angleD are

In a quadrilateral ABCD, angleA + angleC = 180^(@) , then angleB + angleD is equal to