Someone please help me out as fast as possible...​

6

Step-by-step explanation:

Because this is a 45-45-90 triangle, the 4 is equal to the side of x. So we can identify x as 4. By doing so, we can find the length of AB by doing 4+2.

5

Step-by-step explanation:

Using the pathagoryeous thereom we can write

4²+x²=(x+2)²

16+x²=x²+4x+4

12=4x

x=3

Now that we know x=3 to solve for BA just add two

c

step-by-step explanation:

c