Answer:
z/xy where z units squared is the total area of the two outside walls and xy is the area of one sheet.
Step-by-step explanation:
First find the area of a single sheet as;
Length of the sheet is x units
Assume the width of the sheet to be y units
The area of the sheet will be : x* y = xy units squared.
Second, find the total area of the two outside corners walls of the bedroom.
Lets say the total area of the two outside walls is z units squared.
Then to get number of sheets of dry wall you need for the two outside walls of the bedroom will be;
= Total area of the two outside walls / The area of one sheet
= z/xy
Use real values for x, y and z to find the actual number of sheets required for the two outside corners walls of the bedroom.