Find the mean, variance, and standard deviation. If necessary, round your answer to the nearest hundredth. {27, 32, 41, 9, 14, 20, 31, 33, 20, 13}

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