We have formual for area of rectangle A=l w where l is length and w is width. We can transform it to obtain width A=l w /:l (divide both sides by l) l A = w Knowing that A=189 and l=21 we can substitute our data to the formula w= 21 189 = 9 - its the result
The width of the rectangular office is 9 feet, calculated using the area formula for rectangles. We substituted the known values for area and length into the rearranged formula. This shows how dimensions can be derived using basic algebra.
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