The Sumner Museum had collected family photos of town residents for more than a century. The museum director reported that between 1890 and 1900, the average family photo had 5 family members in it. They had 163 family photos from that decade. About how many people would you expect to see in all of the photos from the decade 1890-1900?

The figure shows triangle def and line segment bc, which is parallel to ef: triangle def has a point b on side de and point c on side df. the line bc is parallel to the line ef. part a: is triangle def similar to triangle dbc? explain using what you know about triangle similarity. part b: which line segment on triangle dbc corresponds to line segment ef? explain your answer. part c: which angle on triangle dbc corresponds to angle f? explain your answer. asap