Malik considers the enlargement of the trapezoid. Not drawn to scale

What is the correct cross product that he should use to solve for the missing dimension?
(10)(25) = 18x
(10)(18) = 25x
(18)(25) = 10x
(18)(10) = 18x

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)

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