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Question

In the given figure, PQR is a triangle and S is any point in its interior. Show that SQ+SR<PQ+PR.
867558_3a789c12b2644423886018fa46f24a09.png

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Solution

Produce QS meet PR at T
In triangle PQT
PQ+PT>QT
QT=QS+ST
$PQ + PT>QS+ST$ .......(1)
In triangle STR
TR+ST>RS.......(2)
Adding equation (1) and (2)
PQ+PT+TR+ST>QS+ST+RS
$PQ+PR+ST>QS+ST+RS$
PQ+PR>QS+RS

860301_867558_ans_80e3501510c94ae09b7931273db9bb58.png

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