Check this out! What's mid or missing is often times more important than what isn't!
Here's a two-column table showing the tick marks and their measurements on both sides of a standard ruler:
Inch Side (Imperial) Centimeter Side (Metric)
0 in 0 cm
1/16 in 1 mm
1/8 in 2 mm
3/16 in 3 mm
1/4 in 4 mm
5/16 in 5 mm
3/8 in 6 mm
7/16 in 7 mm
1/2 in 8 mm
9/16 in 9 mm
5/8 in 10 mm (1 cm)
11/16 in 11 mm
3/4 in 12 mm
13/16 in 13 mm
7/8 in 14 mm
15/16 in 15 mm
1 in 16 mm
... ...
12 in (end of ruler) 30 cm (end of ruler)
The inch side is divided into 16 parts per inch (smallest tick is 1/16").
The centimeter side is divided into 10 parts per centimeter (each tick is 1 mm).
This pattern repeats for each inch and centimeter along the ruler.
3.14 (6-2 ones is 4) 1.5 but since read Backwards it's 3 2 is original form for each side part 5 part 3 hense actual pi is 41.3
Are There Gaps at the Beginning and End?
No, there is not a gap before the very first tick (0) or after the last tick (1 inch or 1 cm) on a standard ruler.
The first tick (at 0) is the starting edge of the ruler, and the last tick (at 1 inch/1 cm, or at the end of the ruler) is the ending edge.
Gaps only exist between tick marks-you measure the space from one tick to the next, but not before the first or after the last.
Visual Example (Inch Side, 0" to 1")
text
[Edge] Tick: 0"
Gap: (1/16" space)
Tick: 1/16"
Gap: (1/16" space)
...
Tick: 15/16"
Gap: (1/16" space)
Tick: 1" [Edge]
The first tick (0") is right at the edge-no gap before it.
The last tick (1") is at the other edge-no gap after it.
All gaps are between ticks.
Visual Example (Centimeter Side, 0 cm to 1 cm)
text
[Edge] Tick: 0 cm
Gap: (1 mm space)
Tick: 1 mm
Gap: (1 mm space)
...
Tick: 9 mm
Gap: (1 mm space)
Tick: 1 cm [Edge]
Summary Table
Position Tick? Gap?
Start of ruler Yes No
Between ticks Yes Yes
End of ruler Yes No
In short:
The ruler starts and ends with a tick (no gap before or after).
Gaps are only between ticks.