Question

in paralelogramul ABCD m(CDB)=50,m(DCB)=70.calculati masurile unghiurilor paralelogramului

Answer 1

m(∡DCB)=m(∡DAB)=70°
m(∡ADC)=m(∡ABC)=180°-70°=110°
m(∡CDB)=m(∡DBA)=50°
m(∡ADB)=m(∡DBC)=110°-50°=60°