can someone help me

[student839]

I don't know how to do 2. please help

 

[tkhunny]

What is the measure of angle A?
What does "Bisector of A" mean?

 

[student839]

A = 60 because of 180-(90+30)=60. And "Bisector of A"= break the angle into half

 

[lev888]

break the angle into half

This might help in answering one of the questions.

 

[Deleted member 4993]

This might help in answering one of the questions.

break the angle into half

That makes DAC a special type of triangle!

 

[tkhunny]

And that makes ABD and CBA the same kind of special triangle. What can you say of them?