The most typical application of the device is to measure the lengths of roads, rivers, and other line features on maps. It, also known as a curvimeter, heliograph, or map measurer, is a device that measures the lengths of curved lines of any shape.
the ruler The meter stick
The instrument used to measure Earth's circumference is called a theodolite. It is a precision instrument that measures horizontal and vertical angles. By measuring angles between points on Earth's surface, scientists can calculate the size of Earth.
take Area/Length
Same instrument as you would use for a line or perimeter (ruler, measuring tape, etc.). However, you multiply width times length for rectangles and more complicated methods for other 2D shapes. If it's a 3D shape, for cubes/rectangular prisms you multiply length times width time height, and more complicated formulas for other shapes.
old people
You measure the linear inches with a ruler or tape measure, then you do the calculation to find out the area (length times width, if it is a rectangular shape).
piano (apex)
Two violins, violist and cellist
To find the ratio of the length of a shape to its perimeter, you would divide the length by the perimeter. For example, if the length of a rectangle is 4 units and its perimeter is 12 units, the ratio would be 4/12 or 1/3. This ratio represents the proportion of the length to the total distance around the shape.
India
The longest length would be the hypotenuse. You can use SOHCAHTOA to find the length.
The width height and length would all be the same