QUICK HELP

Question

QUICK HELP

anonymous · Answer

attachment

turingtest · Answer

Thinking out loud...
let the center point be O
if AC is the diameter then so must be DB because it passes through the midpoint
this means angle DOC must be 120 (vertical angles) and the triangle DOC  must be isosceles. so the other two angles must be 30 so the triangle adds to 180
so I guess angle BDC must be 30
I think...

anonymous · Answer

yes 30 degrees is correct

turingtest · Answer

yay! I love it when I have no idea what I'm doing and get the right answer anyway!
thanks jimmy!

anonymous · Answer

thats ok - i got it wrong a minute a go and had to do an embarassing re-check

shadowfiend · Answer

In the future, please do not repost your question so quickly. jimmyrep fixed his answer on your other post before TuringTest answered it correctly here, so you just added a pointless question to the list. Thanks!