Question

plz help me to solve this math​

Answer 1

in equilateral triangle we know that their all sides are equal ... theregore
AB=BC=CA ...
THEN FIND THE LENGTH OF AB , BC ,CA BY DISTANCE FORMULA THEIR COORDINATES ARE ALREADY GIVEN SO FIND BY THE FORMULA AND IF THEY ALL ARE EQUAL THEN IT IS A EQUILATERAL TRIANGLE..

Answer 2

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The collision of the particles with the walls of the vessels give rise to the pressure of the gas.