ab is a line segment p and q are the points of opposite sides line AB such that each of the term equidistant form a and b show that a)triangles AQP congruent to BQP
b) triangle APC congruent to triangle BPC
c) PQ is the pendicular bisector of AB
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Step-by-step explanation:
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Step-by-step explanation:
Given P is equidistant from points A and B
PA=PB .....(1)
and Q is equidistant from points A and B
QA=QB .....(2)
In △PAQ and △PBQ
AP=BP from (1)
AQ=BQ from (2)
PQ=PQ (common)
So, △PAQ≅△PBQ (SSS congruence)
Hence ∠APQ=∠BPQ by CPCT
In △PAC and △PBC
AP=BP from (1)
∠APC=∠BPC from (3)
PC=PC (common)
△PAC≅△PBC (SAS congruence)
∴AC=BC by CPCT
and ∠ACP=∠BCP by CPCT ....(4)
Since, AB is a line segment,
∠ACP+∠BCP=180 (linear pair)
∠ACP+∠ACP=180 from (4)
2∠ACP=180
∠ACP= 180/2
=90
Thus, AC=BC and ∠ACP=∠BCP=90
∴,PQ is perpendicular bisector of AB.
Hence proved.
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