Question 1004104
Drawing:
<img src = "http://i.imgur.com/WZIfpr9.jpg">


The stuff in <font color = red>red</font> is the stuff added
<table border=1><tr><th>Number</th><th>Statement</th><th>Reason</th></tr><tr><td>1.</td><td>Line RX is perpendicular to line ST</td><td>Given</td></tr><tr><td>2.</td><td>Line RX is congruent to line RX</td><td><font color=red>Reflexive Property of Congruence</font></td></tr><tr><td>3.</td><td>X is the midpoint of line ST</td><td>Given</td></tr><tr><td>4.</td><td><font color=red>Angle RXS = angle RXT</font></td><td><font color=red>All perpendicular angles are congruent (and equal to 90 degrees)</font></td></tr><tr><td>5.</td><td>SX is congruent to TX</td><td><font color=red>Definition of Midpoint (uses line 3)</font></td></tr><tr><td>6.</td><td><font color=red>Triangle SRX is congruent to triangle TRX</font></td><td>SAS Property of Congruence (uses lines 2,4,5)</td></tr><tr><td>7.</td><td>Line RS is congruent to RT</td><td><font color=red>CPCTC</font></td></tr></table>


Note:
CPCTC = Corresponding Parts of Congruent Triangles are Congruent