5.7 ft
A regular quadrilateral is a square. As to the measure, the answer depends on the measure of WHAT? An angle, a side, the diagonal, area, perimeter, etc.
9.2 ft
The answer depends on what the 120 ft refers to. Is it a measure of a side, a diagonal or is 120 ft the perimeter and you wish to minimise something else?
Measure the length and the width. Or if you are feeling particularly energetic, then one of them and the diagonal.
If the perimeter measure 20" then each side is of length 5". Let D be the diagonal. Using Pythagoras' Theorem. D² = 5² + 5² = 25 + 25 = 50 Then D = √50 = 5√2 = 7.071" (3dp)
The length, width, height, thickness, diagonal, perimeter, are some characteristics.
yes if you have framed unfinished walls, measure then deduct finish such as sheetrock
The answer to this question depends on what characteristic of a rhombus you are measuring: the length of its sides, its perimeter, area, length of diagonal, its acute angles, its obtuse angles, or something else.
It works out as 22.335 feet rounded to three decimal places
The answer will depend on what 640 is meant to measure: area, perimeter, length of diagonal. Who knows? Especially when no units are given. It is, therefore, impossible to give a sensible answer to this question.
To determine how much sheetrock you need for your project, measure the area of the walls and ceilings you plan to cover with sheetrock. Calculate the square footage of the space and then purchase enough sheetrock to cover that area, accounting for any waste or extra pieces needed for cuts and mistakes.