You will not find an ordinary ruler which shows 1.69 inches. This would require each inch to be divided into 100 subdivisions which is not realistic for an ordinary ruler.
Normal rulers give numbered lines for inches and either 10 or 16 unnumbered subdivisions of inches (there are other numbers of subdivisions but they are less common). If 10 divisions, then 1.69 inches is a tiny bit less than 1 inch and 7 of the ten divisions. If an inch has 16 divisions then 1 and 11 (of 16) subdivisions is 1.6875 - nearly 1.69 inches.
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yea boi circumference = pi*d = 169.6 inches les go my gi
169 cm = 5.54 feet 5.54461942 feet (5 feet 617⁄32 inches)
169 times 169 equals = 28561
169 = 1 x 169, or 169 = 13 x 13
169 can be divided by: 1, 13, 169.