6. 1) 72 In a 2) 56 à quadrilateral ABCD it is being given that ABII DC, ZA: ZD=2:3 and ZB: ZC then ZD= in a call letter ABCD tab been given that AB perpendicular to DC angle is to angle t is equal to 2:3 and Angle B is 2 angle C is equal to 4:1 then angle d is equal to
