You cannot. The lengths and widths are not sufficient information to determine the height.
rectangular prism is a 3D structure with 4 lengths 4 widths 4 heights
Since the question asks about the perimeter, lengths and widths, it is not clear what the 30 feet measure, which is given in the question, refers to! Without that information, it is impossible to answer the question.
You can't find the widths of a rectangle with the lengths because the widths can be anything lower than the lengths. Like if your rectangle had a length of 7 the width can be 6, 5, 4, 3, 2, and so on.
stay the same
rectangle
DDDDDDDDDIIIIIIIIIIIIIICCCCCCCCCCCCCCKKKKKKKKKKKKKK
Different pools have different proportions.
Batt insulation comes in a variety of widths, lengths and thicknesses.
Widths and lengths are two entirely different things. They don't go into anything other than Length x Width = Area.
Four - two lengths (sides) and two widths (ends).
A rectangle has 2 equal widths and 2 equal lengths whereas a rhombus has 4 equal widths but they are both 4 sided quadrilaterals.
you ask how many 'widths' and you clearly say the pool is 8m wide, so 1000m(kilometer) would be 125 widths(1 way) or 62.5 width (there and back). Might be easier to swim lengths though, 16.66(there and back) lengths.