It rained 2 cm yesterday .explain the meaning of 2 cm here .?

Question

and also tell me how much water will fall on a rectangular field with dimension 5cm *3 cm ,if rainfall is recorded as 3 cm ???

Answer 1

2cm is the length of water fill when it rains.

5*3*3 =45 cubic cm of water

Answer 2

the amount of a rainfall in an area is count by its height,

as an example: 1 mm height of rain means a liter water in a meter square..

so 2 cm = 20 liters of water in a meter square..

since it falls in a rectangular field so the wide is:

5 * 3 = 15 centi meters square..

if rainfall is recorded as 3 cm so the amount of water is:

3 x 15 = 45 cm cubic

means there is a total of 0,045 liter of water = 45 ml of water