Provide the requested proof.Let ?I and ?E be right angles, and suppose 
. Prove that the diagonals 
and 
are perpendicular.
What will be an ideal response?
Answers will vary. A sample correct response would be as follows.
By HL, 
. It follows that KI = KE and 
. Let X denote the point of intersection of KT and IE. Then by SAS, 
, and so 
. It follows that both of these are 90°, and so the diagonals 
and 
are perpendicular.
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Provide an appropriate response.Find 
-x
A. e
B. ?
C. 0
D. 
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A. 2373 units B. 2989 units C. 2527 units D. 1911 units
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A. 10 B. 60 C. 120 D. 20
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A. (-2, 1)
B. (-2, -1)
C. (-0.5, 3.25)
D. (2, 1)