Is there any way to color the area between four points except using 'fill' in polygon? I have drawn a polygon using four lines as,

<line x1="0" y1="0" x2="300" y2="0" style="stroke:rgb(255,0,0);stroke-width:2"></line>
<line x1="300" y1="0" x2="300" y2="150" style="stroke:rgb(255,0,0);stroke-width:2"></line>
<line x1="300" y1="150" x2="0" y2="150" style="stroke:rgb(255,0,0);stroke-width:2"></line>
<line x1="0" y1="150" x2="0" y2="0" style="stroke:rgb(255,0,0);stroke-width:2"></line>

and I want to color the area between these lines.

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