Question 1038102

if segment PR=25 and segment PQ=12 then what does QR=, the points sit on a straight line and are noncollinear P___________Q___________R
<pre>PQ + QR = PR
12 + QR = 25 ------ Substituting 12 for PQ and 25 for PR
QR = 25 - 12 ------ Subtracting 12 from both sides
{{{highlight_green(QR = 13)}}}