#### Answer

The perimeter is 23 km

#### Work Step by Step

The perimeter of a trapezoid is equal to the sum of the lengths of its sides
perimeter = 6 + 4 + 9 + 4
perimeter = 23 km

Published by
Pearson

ISBN 10:
0321955048

ISBN 13:
978-0-32195-504-3

The perimeter is 23 km

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