SOLUTION: Two circles C1 and C2 touch each other internally at P. Two lines PCA and PDB meet the circles C1 in C,D and C2 in A,B respectively. if angle BDC = 120, then the value of angle ABP

Question 1040357: Two circles C1 and C2 touch each other internally at P. Two lines PCA and PDB meet the circles C1 in C,D and C2 in A,B respectively. if angle BDC = 120, then the value of angle ABP is equal to
Answer by ikleyn(52778) (Show Source): You can put this solution on YOUR website!
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It would be good to say in the condition which of the two circles C1 and C2 is internal.

Or, if it doesn't matter, then say it directly: "It doesn't matter which of the two is internal".

Otherwise I don't know what I am doing.

Which is bad.

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