The volume of the rectangular parallelepiped is 1.35 m3, the height is 2.25 m and the length is 8 dm. find its width.

Given:
Straight. parallelepiped;
V = 1.35 cc m .;
a = 2.25 m;
b = 8 dm. = 0.8 m;
c =?
Decision:
A parallelepiped is a prism whose base is a parallelogram. A parallelepiped, the four side faces of which are rectangles, is called straight. A straight parallelepiped, in which all six faces are rectangles, is called rectangular.
The volume of a rectangular parallelepiped can be found by the formula:
V = a * b * c;
where a, b, c – edges or length, width and height of a parallelepiped.
This implies:
c = V / a * b;
c = 1.35 / 2.25 * 0.8 = 1.35 / 1.8 = 0.75 (m.);
0.75 m = 7.5 dm.;
Answer: 7.5 dm.