NO. you don't start to count from negative numbers do you ? Start from 0
It depends on the type of ruler you are using. Depends if you are using a just metric unit ruler or if you are using a yard/meter stick. The measurements should be written along the edge of the ruler.
Make sure you are using the correct SI unit on the ruler.
a ruler using centimetres as the mesurement
You cannot. You cannot ensure the lines are strictly parallel using only a ruler.
There is a hole in the ruler (i.e.) circle just make the circle using that
It depends on the type of ruler you are using. Depends if you are using a just metric unit ruler or if you are using a yard/meter stick. The measurements should be written along the edge of the ruler.
SMM : Spinning Metric MeasurementThat mean Count of Yarn before Dyeing using Metric system.
by using a ruler and a compass
Make sure you are using the correct SI unit on the ruler.
a ruler using centimetres as the mesurement
You cannot measure an angle using a ruler.
one thousand
You cannot. You cannot ensure the lines are strictly parallel using only a ruler.
There is a hole in the ruler (i.e.) circle just make the circle using that
get a ruler,measure it and write it on a piece of paper.
the ruler was used to measure the length of my book.
SMM : Spinning Metric MeasurementThat mean Count of Yarn before Dyeing using Metric system.