Protractor...
use your ruler to measure the sides
A tape measure.
How about a micrometer
You would use to measure decimeter is a ruler.
What instrument do we use to measure the electrical and mechanical vibrations
We use perimeter to measure the length and breadth so that we can easily find out the measurement of a figure
area and perimeter.
Yes on vast scale
Metre.
I would use kilometers.
The barometer is the instrument that is used to measure the air pressure.
seismographs
thermostat
seismographs
Protractor...
use a protractor to measure angles