Answer:
12 or 27
Step-by-step explanation:
It could be either 12 or 27 since and isosceles triangle has two legs that are the same. If you can have multiple tries on this question, try putting one of these numbers in, if you have one try, figure out what you need to do. I don't really know what to do because there is no picture but it should be 12 or 27.
