I think the answer should be 4.7 but rounded up would be 5
The second shape is double the first so you would do AB = 2 and then times by 2 as its double and you will get 4
answer = 4
Answer:

Step-by-step explanation:
The distance (d) between two points in 3 dimensions is ...
d = √((x2 -x1)² +(y2 -y1)² +(z2 -z1)²)
Then the distance between (a, -b, -4) and (0, 0, 0) is ...
d = √((a -0)² +(-b -0)² +(-4 -0)²)
= √(a² +b² +16)
The absolute value of an given number is always positive. So, when adding two to any positive number will always be greater than the number by itself.