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have u tried it yet?
Yes but I don't understand it at all.
ok, in order for evaluate m∠DBC u must find the measure of DC right?
and u know that BD=180 (half of perimeter)
one question: what is the measure of BC ?
i mean u have m∠BAC = 55° so BC=2*m∠BAC=110, am i right?
what happend? ok ok
so u can evaluate measure of CD now ... because CD and BD sum to 180 :)
How do I find what one of those angles are equal?
CD or BD
emm...those are not angles actually but the arcs (part of perimeter)
sorry about that, my notations are not suitable
I know what an arc is lol
oh ok :)
so i cant get ur question: How do I find what one of those angles are equal? maybe other helpers ??? :)
I'm so frustrated ):
I need to find the measure of the radius?
I don't think so, still thinking...
Ah x is 35
We're applying this |dw:1370707391287:dw| two times
The first time is from angle CAB to COB, "O" is the center, so 55 times 2 is 110, then use 180 minus 110 you'll get 70, then apply that method by dividing 2 from 70 to get 35.
Ahh I see
Thank you, Sam (:
you're welcome jess :)