Not sure why the problem title says "3x3 matrix", then uses non-3x3 matrices in the example and test suite. Considering rewording for clarity.
The problem description has been updated and new test cases are added.
Works only because of limited test suite.
Similar Triangles - find the height of the tree
Multiply a column by a row
Insert zeros into vector
Find the dimensions of a matrix
Divide by 4
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