Geometry

The answer is D. 22.

 

1. Recall the property of congruent segments:

If two line segments and are congruent, denoted as , then the lengths of the two line segments are equal. That is, if , then (where is the length of and is the length of ).

 

We are given that . By the definition of congruent segments, this implies that .

 

We are also given that . By the definition of congruent segments, this implies that .

 

2. Use the transitive property of equality:

The transitive property of equality states that if

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