Question

please answer my question
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Answer 1

Answer:

b) semi perimeter of triangle

yes 's' is called semi perimeter of triangle in herons formula, perimeter formula is p=a+b+c whereas semi perimeter formula is s=(a+b+c)/2, this divide 2 says the half of perimeter so it's semi perimeter

Hope you may get it

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Answer 2

Answer:

I hope this answer will help u pls mark me brilliant pls only one request