Algebra Pre-Algebra and Basic Algebra Math Forum

November 22nd, 2018, 10:23 AM   #1
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Points A, F and D lie on a circle center P, points B,C,D and F lie on a circle center Q, the line AB is tangent to both circles and the points, A, F, E and C lie on a straight line, Angle FAB is a (alpha) degrees and Angle ABF is b (beta) degrees

i)prove that Angle FDA = a (alpha) degrees

ii) Find expression of angle CDA in terms of a (alpha) and b (beta)

THANKS GUYS
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 November 22nd, 2018, 08:18 PM #2 Global Moderator   Joined: Dec 2006 Posts: 20,475 Thanks: 2039 (i) Angle FDA = angle FAB by the alternate segment theorem.

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