Question

HELP? WILL MEDAL!

Answer 1

Hints:

AB = BC
AB+BC = AC

Answer 2

24? @jim_thompson5910

Answer 3

Well, if AC is 12, AB cannot be bigger than that.

Answer 4

If AB=BC ; AB+BC=AC ; AC=12
We can make the equation
AB+AB=12
This can be rewritten as 2AB=12
Now solve for AB.

Answer 5

AC is 12.

Answer 6

6

Answer 7

Yep :)
Do you understand how you got 6?

Answer 8

adding to @Seratul 's response, if you let AB = x, then 2x = 12 so x = ???