Question

Calculate the length of DE.

Answer 1

set up the proportion, cross multiply, and solve for the missing length.

`(BA)/(BE) = (DC)/(DE)`

`(6)/(3) = (9)/(DE)`

6(DE) = 3(9)

DE =
`(3(9))/(6) = (9)/(2) = 4.5`

Answer: 4.5