help in this question of triangles...
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In triangles STR
ST + TR > SR - ( 1 ) sum of two side of
triangle is greater
than third side
In triangle PQT
PQ + PT >QT. (2) sum of two side of
triangle is greater
than third side
Adding (1) and (2) equation
ST + TR +PQ +PT >SR + QT
PQ + PR + ST > SR + QS + ST. ( where
PT + TR = PR.
And QS +
ST = QT)
SQ + SR > PQ + PR
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