The best option is metres, centimetres and millimetres
ft/inches most likely
Length->metersVolume->LitersMass->grams
the basic measure of length used to measure the thckness of a pin or leaf is in millimeter
I would measure it in maters
No. Balances measure weight. To measure a stick, you would use a ruler or similar measure.
I would use vernier callipers.
Length->metersVolume->LitersMass->grams
The basic metric unit for length is the metre. Rivers would be measure in kilometres (1,000s of metres)
You don't measure with length. You measure the length of an object with a ruler. You would use inches or metres as your units.
the basic measure of length used to measure the thckness of a pin or leaf is in millimeter
I would measure it with a ruler.
Any measure of length will do, but the most common would be feet or meters.
You would answer it with cubic feet
The width would be X, and the length 4 X. Since the perimeter of 40 ft is the two lengths, and the 2 ends, that would be X+X+4X+4X= 40 ft, or 10X= 40 ft, simplified by dividing both sides of the = by 10, to get X=4 and 4X=16.
length
A metres, for an approximate measure, a centimetre for a more accurate measure.
I would use feet
You would use meters.