Answer :
The length of the 4th side on quadrilateral ABCD will be D. 8cm.
How to calculate the length?
From the information given, we are told that the lengths of the three longest sides in quadrilateral ABCD are 24 feet, 16 feet, and 12 feet long.
In this case, the side will be:
24/16 = 12/x
x = (16 × 12)/24
x = 8
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