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posted by  tell on 4/23/2008 10:57:03 PM  |  status: Closed  

circle geometry

Course Textbook Chapter Problem
Other applied mathematica workbook 20- absolute value publications unit 4 lesson #2 5
Question Details:
find the value of the variables. the centre of each circle is marked with a solid point. whut is X 
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posted by gomorycut on 4/24/2008 9:13:06 PM  |  status: Live
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tell's comment:
"you really helped me thanks so much "
Response Details:
That's just Thales' theorem: the central angle is twice the inscribed angle subtended by the same arc.
 
So x is 2*38 = 76 degrees

Feel free to send me a private message with any followup questions if there is something you want clarified or re-explained.
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