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Jagdish Yadav

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· 1 Months ago

The question says AP meets the second circle at Q. It should have been, it intersects the circle. Usually meets term is used for tangents.

Question:
Assume C is a point on a straight line AB and two circles of diameter AC and AB are drawn on this line. P is a point on circumference of the circle of diameter AB. If AP meets second circle at Q, then which of the following is correct?
Options:
A) QC || PB
B) QC will never be parallel to PB
C) QC = \(\cfrac{1}{2}\)PB
D) QC || PB and QC = \(\cfrac{1}{2}\)PB
Solution:
Ans: (a)

From figure,


\(\angle \)APB = \(\angle \)AQC and \(\angle \)PAB = \(\angle \)QAC

DPAB ~ DQAC

\(\therefore\) \(\angle \)PBA = \(\angle \)QCA

Hence, QC | | PB.

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