PLEASE HELP I DON'T KNOW WHAT TO DO

6

Step-by-step explanation:

The rise of triangle ABC is 4, to go from 4 to 8 is times 2. The run of triangle ABC is 3, since it needs to be a similar triangle 3x2=6. The run of a similar triangle would be 6.

the answer is 6

   if you do not understand something you can always ask me

P.S (sorry for the short response i need to be doing home work due at 11:59 so yeah)

You dont have to give me brainliest btw

dont understand

step-by-step explanation: