For calculating length______ Unit for measuring area______ Unit

For calculating length______ Unit for measuring area______ Unit

Of course, the length unit is used to measure the length, and the area unit is used to measure the playground area

Calculation of volume unit, area unit and length unit
It is known that the railway is 10 kilometers long and the cost is 170 yuan per cubic meter. What is the total cost of the railway?
One less roadbed, paving height of 30cm
It's best to list the formula in detail

The railway length, subgrade height and rail width are all converted into meters
10km = 10 * 1000m = 10000m
30 cm = 0.3 M
Total cost = volume * unit cost = length * height * width * unit cost = 10000 * 0.3 * width * 170 = 510000 * width

Calculate the area with () units? Calculate the length with () units?

Calculate area in (area) units? Calculate length in (length) units