Question

please solve question no. 6​

Answer 1

Answer:

angle ODA = 55°

angle OCD = 35°

Answer 2

Answer:

According to the hint,

OAD=ODA

In triangle DOA,

DOA=70 (Given in the hint)

let ADO and DAO be x

70+x+x=180 (sum of angles of a triangle is 180)

70+2x=180

2x=110

x=55=ODA=OAD

CDA=90

since ODA=55,

CDO=90-55=45

In triangle DOC,

AOB=DOC=110 (vertically opposite angles are equal)

110+45+DCO=180 (sum of angles of a triangle is 180)

155+DCO=180

DCO=25

I hope this helps!!!