In the accompanying diagram of circle O with
inscribed isosceles triangle ABC, AB ≅ AC,
mCB = 60, FC is a tangent, and secant FBA
intersects diameter CD at E.
Find: m∠ADC, mAD, m∠DEB, m∠AFC, m∠BC

Question

In the accompanying diagram of circle O with 
inscribed isosceles triangle ABC, AB ≅ AC, 
mCB = 60, FC is a tangent, and secant FBA 
intersects diameter CD at E.
Find: m∠ADC, mAD, m∠DEB, m∠AFC, m∠BC

anonymous · Answer

I don 't know how to help, but this is more Trigonometry rather then Geometry.

rational · Answer

the diagram doesnt look correct to me
could you take a snapshot and attach the original diagram please ?

pokemon23 · Answer

alright I found the question online.

pokemon23 · Answer

http://www.jmap.org/JMAP/RegentsExamsandQuestions/PDF/WorksheetsByPI-Topic/Geometry/Informal_and_Formal_Proofs/G.G.51.ArcsDeterminedbyAngles7.pdf

pokemon23 · Answer

question 20

rational · Answer

$m\angle ADC =m\angle ABC =  60  $

pokemon23 · Answer

How ?

pokemon23 · Answer

the question states that CB=60

rational · Answer

one sec

pokemon23 · Answer

Question number 20 to look at that diagram for this question.

anonymous · Answer

http://prntscr.com/3cblb1 so you don't have to scroll lol

pokemon23 · Answer

Thanks for that picture.

rational · Answer

disregard my earlier statement :
$m\angle ADC =m\angle ABC =  60$

is wrong. lets start over

pokemon23 · Answer

Alright.

anonymous · Answer

@rational why is ur pic like u r crying????????

ikram002p · Answer

|dw:1398166947409:dw|

pokemon23 · Answer

I would say plug in what the question has given us. So CB=60 and AB and AC are congruent

ikram002p · Answer

|dw:1398167149524:dw|

pokemon23 · Answer

The question asking to find the m <ABC

ikram002p · Answer

just tell me this ADC which angle ?
|dw:1398167371752:dw|
or this ?
|dw:1398167391915:dw|