Question

Question #ad0e0

Answer 1

`DC=2.4`

Explanation:

By Angle Bisector Theorem,

`(AB)/(AD)=(BC)/(DC)`

Let `DC=x, => AD=4-x`

`=> 3/(4-x)=4.5/x`
`=> 3x=4.5xx(4-x)=18-4.5x`
`=> 7.5x=18`
`=> x=18/7.5=2.4`

Hence, `DC=2.4`