it depends on the shape. the unit should be given
Any unit of length will do, for example meters, millimeters, kilometers, light-years, feet, etc.
is the perimeter of the triangle whose sides measure 7.5 7.1 and 8.1
the diagonals of a rhombus measure 16 cm and 30 cm.find its perimeter.
Perimeter.
it depends on the shape. the unit should be given
If 40 is the measure of one side, the perimeter is 160.
Metre.
The perimeter uses same unit as length. It is measured in meter , centimeter etc.
Perimeter isn't an unit of measure, it's another name for "outside edge", or "boundary"
I would use kilometers.
kilometer
it isn't- it can be measured in any unit of measure that measures length
Perimeter is a length or a distance, just like depth, height, and circumference are. Any unit of length can be used to describe a perimeter. Some good ones are ... - nanometer - inch - kilometer - parsec - furlong - yard - league - mile - light-year.
You find the three sides of the triangle, and assure that they are all in the same unit, and then add the sides together to find the perimeter of the triangle.
The answer will depend on whether you want its perimeter or its area.
A tape measure would be the tool, measuring in centimetres or inches.