Question

Number 3 pls !!!!!!!!!!!!!!

Answer 1

AB = 9

Explanation:

Tale's theorem

`(12)/(4) =(AB)/(3)`

`AB=((12)(3))/(4) =(36)/(4) =9`

Hope this helps

Answer 2

9

Explanation:

ED: DC = 3:1

AB : BC = 3:1

AB: 3 = 9