Find the area of a square park whose perimeter is 320m.
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One mole of hydrogen molecule has a mass of 2 grams because hydrogen molecules are formed by binding two hydrogen atoms
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4 a=320
So a is 80
A square give area
So 80*80= 6400 m2
So a is 80
A square give area
So 80*80= 6400 m2
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