need help with this one math question

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1

<p>here's a link to the diagram: <a href="http://i31.tinypic.com/2eyxi8p.jpg%5B/url%5D"&gt;http://i31.tinypic.com/2eyxi8p.jpg&lt;/a&gt;&lt;/p>

<p>In triangle PQR above, QS/QV = 1/3 and PT/PR = 3/4
What is the value of the fraction (area of triangle PST)/(area of triangle PQR)?</p>

<p>the answer is 1/2 or 0.5, i don't get how.
thanks.</p>

2

<p>Let QS=1, QV=3, PT=3 and PR=4. Then SV=2. So area PST=1/2<em>3</em>2=3, and area PQR=1/2<em>4</em>3=6. Hope that helps</p>