So, if<span> the scale </span>factor<span> is </span>three<span>, then the dimensions of the new shape </span>will<span> be </span>three<span> times larger than ... What </span>impact<span> did this have on the perimeter? ... The </span>area<span> of a rectangle is </span>length<span> times </span>width<span>, so it's 5 x </span>3<span>, which is 15. ... When you're working with scale </span>factors<span>, </span>square<span> the scale </span>factor<span> to determine the </span>area<span> of the new figure.</span>