In the below figure, there are ___ angles and they are ___.
3, ABC, DBC, DBA
3,BDA, ABC, BCD
3, CAB, BDA,BCD
3, ACB, BDA,BCD
In the shown figure three angles can be formed and they are ABC, DBC and DBA.
In a parallelogram ABCD, the diagonals bisect each other at O. If ∠ABC=30∘,∠BDC=10∘and∠CAB=70∘.
Find: ∠DAB,∠ADC,∠BCD,∠AOD,∠DOC,∠BOC,∠AOB,∠ACD,∠CAB,∠ADB,∠ACB,∠DBC and ∠DBA.