how can i find m

Question

how can i find m<9 of a secant-tangent angle in a circle with one arc of 120 degrees?

anonymous · Answer

|dw:1394317116286:dw|

mathmale · Answer

Frankly, I've not seen this type of question, nor the language ("secant-tangent angle" before.  Have you spent any time researching this "secant-tangent angle" on the Internet, or looking for examples in your course materials?

anonymous · Answer

I have and I have looked in all my notes and previous homework assignments for this section and I can't find anything that references it

mathmale · Answer

Good. But why not also search the Internet? Through the following search: https://www.google.com/search?q=secant-tangent+angle&rlz=1C1CHFX_enUS461US461&oq=secant-tangent+angle&aqs=chrome..69i57.27737j0j7&sourceid=chrome&espv=210&es_sm=122&ie=UTF-8 I obtained the results shown in the attached image:

mathmale · Answer

Wish I could help you personally, but with all that reference info available, you should be able to solve this problem.  Good luck!

anonymous · Answer

thank you :)

mathmale · Answer

Of course!  let me know how you make out in solving this problem.

anonymous · Answer

okay

anonymous · Answer

I found an example  
Find m<ABC if arc AB=102|dw:1394318582283:dw|