Provide an appropriate response.In the following diagram, suppose that 
= 
. Prove that XY is parallel to BC.
What will be an ideal response?
Answers will vary. A sample correct response would be as follows.
Note that 
As 
by the SAS similarity property we have 
Hence 
so by the corresponding angles theorem for parallel lines, XY is parallel to BC.
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A. 1 mph
B. 468,000 mph
C. 89 mph
D. 
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Fill in the blank(s) with the appropriate word(s).