Question

in a parallelogram ABCD if angle Dab is 85 degree and Angle DBC is 60 degree find angle C D B and Angle A b d

Answer 1

Given, Angle a=85
angle dbc= 60
then find angle cdb and adb
proof,
qudrilatral ABCD is a parallelogram
seg AB paralle to DC,
and trnsvarsal BD,
then angle B =60
angle CBD + CDB = 180 (interior angle )
angle CDB= 180-60
angle CDB=120

angle ABD= ADB = 60 (altrnet angle theorem)