Find the distance between (-5, -8) and (-1, -16). can someone explain how the answer is 8.9?
please go into detail I didn't retain any information from the teacher.

step-by-step explanation:

given that ab is divided into equal parts as

ac, cd, de, ef, fg, gh, hi, ib.

from this we find that f is the midpoint of ab.

so using mid point formula we find

f = (3,7)

similarly considering fb, we get

h = mid point of fb = ((6,6) and g, mid point of fh is

g = (9/2, 13/2)

i is mid point of hb

so i =(15/2,11/2)

3 3 6, because in every triangle the longer side is always shorter than the sum of the other two