Why do passenger vehicles often have convex mirrors in addition to flat mirrors?

Pick an answer

1. They are only included for decoration
2. Convex mirrors show a wider area, helping the driver see areas a flat mirror alone would miss
3. They completely replace the need for flat mirrors, since their wider field of view covers every angle a flat mirror would show
4. They are used only when backing up

Correct!

Not quite. The correct answer is highlighted.