Mathematics, 13.01.2021 06:50, impura12713

In the accompanying diagram, PA is tangent to circle O at A, and secant PC intersects circle O at C and D. Chord CA is drawn, chords BA and CD intersect at E, mBC = 50, MZBEC = 60, mBD = x, and mCA = 2x + 30. Find: how to find it , help me thank you!!

In the accompanying diagram, PA is tangent to circle O at A, and secant PC intersects circle O at C

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