Which measurement would rachel need to know when ordering wallpaper for the kitchen? a. the total perimeter of wall space to be covered b. the total area of wall space to be covered c. the thickness of the wallpaper d. the perimeter of the wallpaper

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step-by-step explanation:

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,