Multiple Choice Questions on Two circles C1 and C2 touch each other internally at P Two lines PCA and PDB meet the circ........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

Two circles C1 and C2 touch each other internally at P Two lines PCA and PDB meet the circ...........

Quantitative Aptitude ( CCS) Geometry
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    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 ∠BDC = 120°, then the value of ∠ABP is equal to

    60°

    Correct Answer

    80°

    Incorrect Answer

    100°

    Incorrect Answer

    120°

    Incorrect Answer
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    Explanation:

    ∠BDC = 120°
    ∴  ∠CDP = 180° – ∠BDC = 180° – 120° = 60°
    CD || AB
    ∴  ∠ABP = ∠CDP = 60°

    By: Amit Kumar
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