Answer :
Final answer:
Without specific measurements of trapezoid ABCD's bases, the sum of the lengths cannot be determined, thus the correct answer is not provided based on the information given. None of the option is correct.
Explanation:
The question asks for the sum of the lengths of the bases of trapezoid ABCD. To find the sum of the lengths of the bases, we can refer to the properties of trapezoids. One of the trapezoid properties is that the sum of the lengths of the two bases can be denoted as a + b.
However, without specific measurements given for the trapezoid bases in the provided information, we cannot definitively answer the question or determine if any of the multiple choice options (71 units or 66 units) are correct.
It is crucial to have the lengths of the bases to calculate their sum accurately. Therefore, with the current information provided, we are unable to select a correct answer from the given choices for the sum of the lengths of the bases of trapezoid ABCD.
Additional details and measurements of trapezoid ABCD would be necessary to provide an accurate answer.
