This kind of problem is easy to solve.

Maybe you are not good at volume.

but

It shows the front area.

So you can multiply 2 by 15 at will.

These two numbers are length and height.

Then the width is equal to 8/3.

long

extensive

high

example

three

8/3

5(

Height and length can be interchanged)

1

8/3

15

2

8/3

15/2

……