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39 votes
A soccer field has a perimeter of 326 metres. Its area is 6370 square metres. What are the dimensions of the field?

User Lopezdp
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1 Answer

6 votes
6 votes

Answer:

Explanation:

chiều dài:x,x>0

chiều rộ:y


\left \{ {({x+y)*2=326} \atop {xy=6370}} \right.


\left \{ {{x+y=163} \atop {xy=6370}} \right.


\left \{ {{y=163-x} \atop {xy=6370}} \right.


\left \{ {{y=163-x} \atop {x*(163-x)=6370}} \right.


\left \{ {{y=163-x} \atop {163x-x^(2) =6370}} \right. \\


\left \{ {{y=163-x} \atop {x_(1) =98; x_(2) =65}} \right.


\left \{ {{y=65} \atop {x=98}} \right.

User Dmitry Efimenko
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