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AMC 10 Mock Exam Discussion For 9/6: Question 7

 
 
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AMC 10 Mock Exam Discussion For 9/6: Question 7
by John Lensmire - Wednesday, 6 September 2023, 2:43 PM
 

AMC 10 Mock Exam Question 7

The $8\times18$ rectangle $ABCD$ is cut into two congruent hexagons, as shown, in such a way that the two hexagons can be repositioned without overlap to form a square.


What is $y$?

$\mathbf{(A) } 6\qquad\mathbf{(B) } 7\qquad\mathbf{(C) } 8\qquad\mathbf{(D) } 9\qquad\mathbf{(E) } 10$

Submit your answer and solution and explanation below! Solutions will be accepted for 48 hours until 9/8 at 2pm Pacific Time. (There's still time for yesterday's problem too: click here.)

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Note: The question above is a past AMC problem. Solutions submitted must be written by students. Copied solutions will be disqualified.

 
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回复: AMC 10 Mock Exam Discussion For 9/6: Question 7
by Frank Frank - Saturday, 7 October 2023, 5:22 AM
 

A