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Question

In the adjoining figure (not drawn to scale),
PS=4 cm,SR=2 cm,PT=3 cm and QT=5 cm,
(i) Show that PQRPST.
(ii) Calculate ST, if QR=58 cm
1052714_0b088d7bbefa45879b792259da2e8165.png

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Solution

(1)ΔPQRΔPSTRPQ=TPS{common}PRPT=PQPS{63=84(i)(Given)}
So, By SAS similarity creterio.
ΔPQRΔPST Proved.
(2)QRST=2{From(i)ByC.P.S.T}5.8ST=25.82=ST2.9=ST

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