Review 2.2, 2.5, 3.5, 4.1, 5.7 #21

S. Holden -- Kirkland Math II Class

21) A survivor needs to measure the distance, AB, across the lake. Beginning at E, he locates the mid point, C, of AE and the midpoint, D, of BE. He then measures CD. What is AB?
**Make a brace map of what you know...

By replacing CD with 67 in the midsegment theorem, you multiply 67 by 2 and get 134, which is equal to AB.

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