Question

The ramp shown below is used to move crates of apples to loading docks at different heights. When the horizontal distance AB is 12. BC is 4.

Answer 1

9m is the answer to your question

Answer 2

9 m

Explanation:

ΔABC and ΔADE are similar. That means:

the sides corresponding to each other are proportional.

We can set up ratio for two triangle and solve for DE.

AB corresponds to AD (AB + BD)

and

BC corresponds to DE

hence, the length of DE is 9 m