A rectangle has width 22 in and length 18 in. How do you find the length of another rectangle of equal area, if the width is 20 in?

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Answer 1 · 2018-03-11T11:17:13

The length of rectangle #2# is #19.8# in.

Area of the rectangle #1# is # A_1=22*18# sq.in

Let the length of rectangle #2# be #x# in.

Area of the rectangle #2# is # A_2=20*x# sq.in

#A_1=A_2:. 20*x= 22*18 :. x = (22*18)/20 or x=19.8# in.

The length of rectangle #2# is #19.8# in. [ans]