Atriangle has side lengths of 10, 20, and 30. what type of triangle is it

2x - 20 = 32 20 - 3x = 8 6x - 8 = 16 -13 - 3x = -10

Find the equation using the point (4,8)

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