This diagram is a straightedge and compass construction of a line
perpendicular to line AB passing through point C. Explain why it was helpful
to construct points D and A to be the same distance from C.
![This diagram is a straightedge and compass construction of a line perpendicular to line AB passing through point C Explain why it was helpful to construct point class=](https://us-static.z-dn.net/files/d27/18b2be282d93874d1bde6d86b88a35e4.png)