Question 1150376

a rug measuring 9m by 12m was installed in a recreational hall. A strip of floor of equal width was left uncovered along all edges of the hall. the area of the uncovered floor is 270m^2. how wide is the uncovered strip
<pre>IKLEYN made a mistake. Her denominator should be 8 i/o 16.
Thus, the answer's actually {{{highlight_green(matrix(1,2, 4.5, meters))}}}