Question 1143484
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(1) 12km/hr for 30 minutes --> 6km<br>
(2) 10 times around --> perimeter is 6km/10 = 0.6km --> semiperimeter (length + width) = 0.3km<br>
(3) length equal to twice the width --> length 0.2km; width 0.1km<br>
(4) area = length * width = 0.2km*0.1km = 0.02 square km