The statement that <A > <C and <B > <D has been proved
In geometry, the side length opposite the largest angle is the longest side.
Similarly, the side length opposite the smallest angle is the shortest side.
From the given figure of quadrilateral, we have the following sides in increasing order:
The angles opposite the side lengths are:
This means that:
<A > <C and <B > <D
Hence, the statement that <A > <C and <B > <D has been proved
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