3. rachel is putting up a fence around her pool.
the pool has a diameter of 12 feet. there is a
sidewalk around the pool that extends 3 feet
out from the side of the pool. how many feet
of fencing will she need to go around the
sidewalk? use 3.14 for it.

so, converting firstly the mixed fractions to improper fractions and then "adding".

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)