Polígono de 20 diagonales

2.30+0.4-0.88+1.33 can u explain the answer to this why the answer is 3.15

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?

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