Question 872841
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<table border=1>
  <tr>
    <th>Number</th>
    <th>Statement</th>
    <th>Reason</th>
  </tr>
  <tr>
    <td>1.</td>
    <td>Triangle ACB is Isosceles with a base of segment AC</td>
    <td>Given</td>
  </tr>
  <tr>
    <td>2.</td>
    <td>Angle CBD is congruent to Angle ABD</td>
    <td>Given</td>
  </tr>
  <tr>
    <td>3.</td>
    <td>AB = BC</td>
    <td>Definition of Isosceles Triangle</td>
  </tr>
  <tr>
    <td>4.</td>
    <td>BD = BD</td>
    <td>Reflexive Property</td>
  </tr>
  <tr>
    <td>5.</td>
    <td>Triangle ABD is congruent to Triangle CBD</td>
    <td>SAS Property Of Congruence</td>
  </tr>
  <tr>
    <td>6.</td>
    <td>AD = DC</td>
    <td><a href="http://www.mathopenref.com/cpctc.html">CPCTC</a></td>
  </tr>
  <tr>
    <td>7.</td>
    <td>D is the midpoint of AC</td>
    <td>Definition of Midpoint</td>
  </tr>
</table>