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 feet, the height of the loading dock, BC, is 6 feet. What is the height of the loading dock DE?



10 feet
12 feet
17 feet
18 feet

Answer 1

@Cresciez

Answer 2

Sorry, I'm not sure about this one :(

Answer 3

thats ok

Answer 4

is BD=22?

Answer 5

yes

Answer 6

since the triangles \(ABC\) and \(ADE\) are similar, then we can write this proportion:
\[\huge 12:6 = \left( {22 + 12} \right):DE\]

Answer 7

If we apply the fundamental property of proportions, we can write this:
\[\huge DE = \frac{{6 \cdot \left( {22 + 12} \right)}}{{12}} = ...?\]

Answer 8

oh, is it 17 ?

Answer 9

that's right!

Answer 10

k, thanks : )

Answer 11

:)