In convex quadrilateral ABCD, K is midpoint of AB, M is midpoint CD,. Prove that $ KM \le \frac{BC+AD}{2} $.
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In convex quadrilateral ABCD, K is midpoint of AB, M is midpoint CD,. Prove that $ KM \le \frac{BC+AD}{2} $.
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Originally Posted by olkaabc
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Originally Posted by olkaabcIn convex quadrilateral ABCD, K is midpoint of AB, M is midpoint CD,. Prove that.
and
If you add those two together and divide by two, what do get?