3. The figure shows the curve y = -x - x + 20. (i) The curve cuts the x-axis at two points A and B, and the y-axis at the point C. Find the coordinates of A, B and C. (ii) The point D(3, h) lies on the curve. Find the value of h.

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