9/27: 2813m
10/28: 3810m
11/29: 4430m
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Let the length be (2x+1) and the width be x: length*width = area (2x+1)*x = 21 square miles 2x2+x-21 = 0 Solving the above quadratic equation works out as: x = -7/2 or x = 3 it must be the latter because dimensions can't be negative. Therefore: length = 7 miles and width = 3 miles
perimeter = length + length + width + width = 2*length + 2*width = 36 length = 5*width 2*(5*width) + 2*width = 36 12*width = 36 width = 3 length = 15
Area = length x width Length = area/width
Length and width
Length / Width