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UKMT Senior Mathematical Challenge, 2019

Geometry Difficulty 3.0 AMC 10/12 Find the answer United Kingdom

The edge-length of the solid cube shown is 22. A single plane cut goes through the points YY, TT, VV and WW which are midpoints of the edges of the cube, as shown. What is the area of the cross-section?

(A) 3\sqrt{3} (B) 333\sqrt{3} (C) 66 (D) 626\sqrt{2} (E) 88

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