Imagine that you have a rectangular swimming pool, but you have no idea how deep it is. you know that the pool has a volume of 216m3. you measured the dimensions of the pool and found that it is 15 m long and 6 m wide.

To calculate the volume of any rectangular shape,

We can simply multiply length to wide and to depth.

Let d be the depth.

15 x 6 x d = 216

d = 216 / 15 / 6

d = 2.4

Therefore the depth is 2.4m

Suppose a box is 8 cm long, 6 cm wide, and 4 cm high. To calculate its volume, you would multiply

the area of the object by its height:

area = 8 cm x 6 cm

area = 48 cm2

volume = 48 cm2

x 4 cm

volume = 192 cm3

that tool is called an altimeter which measures your altitude which can be used to tell which atmosphere you are currently in, including the stratosphere.

hope this ! : )