state of the criterion of congruence by which triangle PQR =DEF side hypotenuse of PQR is 3&6 &side&hypotenuse is 6&2.5cm
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A CERTAIN MASS OF CHLORINE GAS OCCUPIES 750CM3 AT CERTAIN PRESSURE , WHEN THE PRESSURE WAS CHANGEFD TO 2.5 ATMOSPHERE , IT OCCUPIED 1500CM3, WHAT WAS THE INITIAL PRESURE IF THE TEMPERATURE WAS KEPT CONSTANT DURING COMPLETE OPERATION?
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